UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549



                                    FORM N-PX

               ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED
                         MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number        811-6683
                                          --------------------------------------

                      Morgan Stanley Health Sciences Trust
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               (Exact name of registrant as specified in charter)

        1221 Avenue of the Americas, New York, New York             10020
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   (Address of principal executive offices)                       (Zip code)

                               Amy Doberman, Esq.

                                Managing Director

                     Morgan Stanley Investment Advisors Inc.

                           1221 Avenue of the Americas

                            New York, New York 10020
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                     (Name and address of agent for service)

Registrant's telephone number, including area code: 800-869-6397
                                                    ----------------------------

Date of fiscal year end:    7/31
                           --------------------

Date of reporting period:     7/1/05 - 6/30/06
                             ------------------





******************************* FORM N-Px REPORT *******************************

ICA File Number: 811-06683
Reporting Period: 07/01/2005 - 06/30/2006
Morgan Stanley Health Sciences Trust









===================== MORGAN STANLEY HEALTH SCIENCES TRUST =====================


AMGEN, INC.

Ticker:       AMGN           Security ID:  031162100
Meeting Date: MAY 10, 2006   Meeting Type: Annual
Record Date:  MAR 13, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Frederick W. Gluck         For       For        Management
1.2   Elect Director J. Paul Reason             For       For        Management
1.3   Elect Director Donald B. Rice             For       For        Management
1.4   Elect Director Leonard D. Schaeffer       For       For        Management
2     Ratify Auditors                           For       For        Management
3     Stock Retention                           Against   Against    Shareholder
4     Link Executive Compensation to Social     Against   Against    Shareholder
      Issues
5     Submit Shareholder Rights Plan (Poison    Against   For        Shareholder
      Pill) to Shareholder Vote
6     Develop an Animal Welfare Policy          Against   Against    Shareholder
7     Require a Majority Vote for the Election  Against   For        Shareholder
      of Directors
8     Report on Political Contributions         For       For        Shareholder


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AMYLIN PHARMACEUTICALS, INC.

Ticker:       AMLN           Security ID:  032346108
Meeting Date: MAY 17, 2006   Meeting Type: Annual
Record Date:  MAR 24, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Steven R. Altman           For       For        Management
1.2   Elect Director Vaughn D. Bryson           For       For        Management
1.3   Elect Director Joseph C. Cook, Jr.        For       For        Management
1.4   Elect Director Karin Eastham              For       For        Management
1.5   Elect Director James R. Gavin III         For       For        Management
1.6   Elect Director Ginger L. Graham           For       For        Management
1.7   Elect Director Howard E. Greene, Jr.      For       For        Management
1.8   Elect Director Jay S. Skyler              For       For        Management
1.9   Elect Director Joseph P. Sullivan         For       For        Management
1.10  Elect Director Thomas R. Testman          For       For        Management
1.11  Elect Director James N. Wilson            For       For        Management
2     Amend Omnibus Stock Plan                  For       For        Management
3     Amend Qualified Employee Stock Purchase   For       For        Management
      Plan
4     Ratify Auditors                           For       For        Management


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APPLERA CORP

Ticker:       CRA            Security ID:  038020103
Meeting Date: OCT 20, 2005   Meeting Type: Annual
Record Date:  SEP 1, 2005

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Richard H. Ayers           For       For        Management
1.2   Elect Director Jean-Luc Belingard         For       For        Management
1.3   Elect Director Robert H. Hayes            For       For        Management
1.4   Elect Director Arnold J. Levine           For       For        Management
1.5   Elect Director William H. Longfield       For       For        Management
1.6   Elect Director Theodore E. Martin         For       For        Management
1.7   Elect Director Carolyn W. Slayman         For       For        Management
1.8   Elect Director Orin R. Smith              For       For        Management
1.9   Elect Director James R. Tobin             For       For        Management
1.10  Elect Director Tony L. White              For       For        Management
2     Ratify Auditors                           For       For        Management


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BAXTER INTERNATIONAL INC.

Ticker:       BAX            Security ID:  071813109
Meeting Date: MAY 9, 2006    Meeting Type: Annual
Record Date:  MAR 13, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Walter E. Boomer           For       For        Management
1.2   Elect Director James R. Gavin, III        For       For        Management
1.3   Elect Director Peter S. Hellman           For       For        Management
1.4   Elect Director K.J. Storm                 For       For        Management
2     Ratify Auditors                           For       For        Management
3     Declassify the Board of Directors         For       For        Management
4     Establish Range For Board Size            For       For        Management
5     Submit Shareholder Rights Plan (Poison    Against   For        Shareholder
      Pill) to Shareholder Vote


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BIOGEN IDEC, INC.

Ticker:       BIIB           Security ID:  09062X103
Meeting Date: MAY 25, 2006   Meeting Type: Annual
Record Date:  MAR 31, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Lawrence C. Best           For       For        Management
1.2   Elect Director Alan B. Glassberg          For       For        Management
1.3   Elect Director Robert W. Pangia           For       For        Management
1.4   Elect Director William D.Young            For       For        Management
2     Ratify Auditors                           For       For        Management
3     Approve Non-Employee Director Omnibus     For       For        Management
      Stock Plan


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BRISTOL-MYERS SQUIBB CO.

Ticker:       BMY            Security ID:  110122108
Meeting Date: MAY 2, 2006    Meeting Type: Annual
Record Date:  MAR 6, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Robert E. Allen            For       For        Management
1.2   Elect Director Lewis B. Campbell          For       For        Management
1.3   Elect Director Vance D. Coffman           For       For        Management
1.4   Elect Director James M. Cornelius         For       For        Management
1.5   Elect Director Peter R. Dolan             For       For        Management
1.6   Elect Director Louis J. Freeh             For       For        Management
1.7   Elect Director Laurie H. Glimcher, M.D.   For       For        Management
1.8   Elect Director Leif Johansson             For       For        Management
1.9   Elect Director James D. Robinson, III     For       For        Management
2     Ratify Auditor                            For       For        Management
3     Increase Disclosure of Executive          Against   Against    Shareholder
      Compensation
4     Provide for Cumulative Voting             Against   For        Shareholder
5     Claw-back of Payments under Restatements  Against   Against    Shareholder
6     Report on Animal Welfare                  Against   Against    Shareholder
7     Establish Term Limits for Directors       Against   Against    Shareholder


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C. R. BARD, INC.

Ticker:       BCR            Security ID:  067383109
Meeting Date: APR 19, 2006   Meeting Type: Annual
Record Date:  FEB 27, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Marc C. Breslawsky         For       For        Management
1.2   Elect Director Herbert L. Henkel          For       For        Management
1.3   Elect Director Timothy M. Ring            For       For        Management
1.4   Elect Director Tommy G. Thompson          For       For        Management
2     Amend Omnibus Stock Plan                  For       For        Management
3     Amend Non-Employee Director Stock Option  For       For        Management
      Plan
4     Amend Qualified Employee Stock Purchase   For       For        Management
      Plan
5     Ratify Auditors                           For       For        Management
6     Adopt ILO Standards                       Against   For        Shareholder


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CAREMARK RX, INC.

Ticker:       CMX            Security ID:  141705103
Meeting Date: MAY 10, 2006   Meeting Type: Annual
Record Date:  MAR 31, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director C. David Brown, II         For       For        Management
1.2   Elect Director Harris Diamond             For       For        Management
1.3   Elect Director C.A. Lance Piccolo         For       For        Management
1.4   Elect Director Michael D. Ware            For       For        Management
2     Report Policies For Political             Against   Against    Shareholder
      Contributions


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CELGENE CORP.

Ticker:       CELG           Security ID:  151020104
Meeting Date: FEB 16, 2006   Meeting Type: Special
Record Date:  JAN 17, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     Increase Authorized Common Stock          For       For        Management


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CELGENE CORP.

Ticker:       CELG           Security ID:  151020104
Meeting Date: JUN 14, 2006   Meeting Type: Annual
Record Date:  APR 27, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director John W. Jackson            For       For        Management
1.2   Elect Director Sol J. Barer, Ph.D.        For       For        Management
1.3   Elect Director Robert J. Hugin            For       For        Management
1.4   Elect Director Jack L. Bowman             For       For        Management
1.5   Elect Director Michael D. Casey           For       For        Management
1.6   Elect Director Rodman L. Drake            For       For        Management
1.7   Elect Director A. Hull Hayes, Jr., Md     For       For        Management
1.8   Elect Director Gilla Kaplan, Ph.D.        For       For        Management
1.9   Elect Director Richard C.E. Morgan        For       For        Management
1.10  Elect Director Walter L. Robb, Ph.D.      For       For        Management
2     Amend Omnibus Stock Plan                  For       For        Management
3     Ratify Auditors                           For       For        Management


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CEPHALON, INC.

Ticker:       CEPH           Security ID:  156708109
Meeting Date: MAY 17, 2006   Meeting Type: Annual
Record Date:  MAR 22, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Frank Baldino, Jr., Phd    For       For        Management
1.2   Elect Director William P. Egan            For       Withhold   Management
1.3   Elect Director Martyn D. Greenacre        For       For        Management
1.4   Elect Director Vaughn M. Kailian          For       For        Management
1.5   Elect Director Charles A. Sanders, M.D    For       For        Management
1.6   Elect Director Gail R. Wilensky, Ph.D.    For       For        Management
1.7   Elect Director Dennis L. Winger           For       For        Management
2     Increase Authorized Common Stock          For       Against    Management
3     Amend Omnibus Stock Plan                  For       For        Management
4     Ratify Auditors                           For       For        Management


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DADE BEHRING HOLDINGS, INC.

Ticker:       DADE           Security ID:  23342J206
Meeting Date: MAY 24, 2006   Meeting Type: Annual
Record Date:  MAR 27, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director J. W. P. Reid-Anderson     For       For        Management
1.2   Elect Director Jeffrey D. Benjamin        For       For        Management
1.3   Elect Director Alan S. Cooper             For       For        Management
1.4   Elect Director Beverly A. Huss            For       For        Management


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ELI LILLY AND CO.

Ticker:       LLY            Security ID:  532457108
Meeting Date: APR 24, 2006   Meeting Type: Annual
Record Date:  FEB 15, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Martin S. Feldstein, Ph.D. For       For        Management
1.2   Elect Director J. Erik Fyrwald            For       For        Management
1.3   Elect Director Ellen R. Marram            For       For        Management
1.4   Elect Director Sidney Taurel              For       For        Management
2     Ratify Auditors                           For       For        Management
3     Report on Animal Welfare Policy           Against   Against    Shareholder
4     Separate Chairman and CEO Positions       Against   For        Shareholder
5     Declassify the Board of Directors         Against   For        Shareholder
6     Require a Majority Vote for the Election  Against   For        Shareholder
      of Directors


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FISHER SCIENTIFIC INTERNATIONAL INC.

Ticker:       FSH            Security ID:  338032204
Meeting Date: MAY 5, 2006    Meeting Type: Annual
Record Date:  MAR 17, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Paul M. Montrone           For       For        Management
1.2   Elect Director Simon B. Rich              For       For        Management
1.3   Elect Director Scott M. Sterling          For       For        Management
2     Approve Qualified Employee Stock Purchase For       For        Management
      Plan
3     Ratify Auditors                           For       For        Management


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GEN-PROBE, INC.

Ticker:       GPRO           Security ID:  36866T103
Meeting Date: MAY 17, 2006   Meeting Type: Annual
Record Date:  MAR 24, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director John W. Brown              For       For        Management
1.2   Elect Director Henry L. Nordhoff          For       For        Management
2     Amend Omnibus Stock Plan                  For       For        Management
3     Ratify Auditors                           For       For        Management


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GENENTECH, INC.

Ticker:       DNA            Security ID:  368710406
Meeting Date: APR 20, 2006   Meeting Type: Annual
Record Date:  FEB 22, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Herbert W. Boyer           For       Withhold   Management
1.2   Elect Director William M. Burns           For       Withhold   Management
1.3   Elect Director Erich Hunziker             For       Withhold   Management
1.4   Elect Director Jonathan K.C. Knowles      For       Withhold   Management
1.5   Elect Director Arthur D. Levinson         For       Withhold   Management
1.6   Elect Director Debra L. Reed              For       For        Management
1.7   Elect Director Charles A. Sanders         For       For        Management
2     Amend Qualified Employee Stock Purchase   For       For        Management
      Plan
3     Ratify Auditors                           For       For        Management


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GENZYME CORP.

Ticker:       GENZ           Security ID:  372917104
Meeting Date: MAY 25, 2006   Meeting Type: Annual
Record Date:  MAR 31, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Victor J. Dzau, M.D.       For       For        Management
1.2   Elect Director Connie Mack, III           For       For        Management
1.3   Elect Director Henri A. Termeer           For       For        Management
2     Amend Omnibus Stock Plan                  For       For        Management
3     Amend Non-Employee Director Stock Option  For       For        Management
      Plan
4     Declassify the Board of Directors         For       For        Management
5     Ratify Auditors                           For       For        Management
6     Submit Severance Agreement (Change in     Against   For        Shareholder
      Control) to shareholder Vote


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GILEAD SCIENCES, INC.

Ticker:       GILD           Security ID:  375558103
Meeting Date: MAY 10, 2006   Meeting Type: Annual
Record Date:  MAR 22, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Paul Berg                  For       For        Management
1.2   Elect Director John F. Cogan              For       For        Management
1.3   Elect Director Etienne F. Davignon        For       For        Management
1.4   Elect Director James M. Denny             For       For        Management
1.5   Elect Director John W. Madigan            For       For        Management
1.6   Elect Director John C. Martin             For       For        Management
1.7   Elect Director Gordon E. Moore            For       For        Management
1.8   Elect Director Nicholas G. Moore          For       For        Management
1.9   Elect Director Gayle E. Wilson            For       For        Management
2     Ratify Auditors                           For       For        Management
3     Amend Omnibus Stock Plan                  For       For        Management
4     Approve Executive Incentive Bonus Plan    For       For        Management
5     Increase Authorized Common Stock          For       For        Management
6     Report on Impact of HIV/AIDS, TB, and     Against   Against    Shareholder
      Malaria Pandemics


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GLAXOSMITHKLINE PLC (FORMERLY GLAXO WELLCOME PLC )

Ticker:       GSK            Security ID:  37733W105
Meeting Date: MAY 17, 2006   Meeting Type: Annual
Record Date:  MAR 10, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     TO RECEIVE AND ADOPT THE DIRECTORS        For       For        Management
      REPORT AND THE FINANCIAL STATEMENTS
2     TO APPROVE THE REMUNERATION REPORT        For       For        Management
3     TO ELECT DR MONCEF SLAOUI AS A DIRECTOR   For       For        Management
4     TO ELECT MR TOM DE SWAAN AS A DIRECTOR    For       For        Management
5     TO RE-ELECT MR LARRY CULP AS A DIRECTOR   For       For        Management
6     TO RE-ELECT SIR CRISPIN DAVIS AS A        For       For        Management
      DIRECTOR
7     TO RE-ELECT DR RONALDO SCHMITZ AS A       For       For        Management
      DIRECTOR
8     Ratify Auditors                           For       For        Management
9     REMUNERATION OF AUDITORS                  For       For        Management
10    TO AUTHORISE THE COMPANY TO MAKE          For       For        Management
      DONATIONS TO EU POLITICAL ORGANISATIONS
      AND INCUR EU POLITICAL EXPENDITURE
11    AUTHORITY TO ALLOT SHARES                 For       For        Management
12    DISAPPLICATION OF PRE-EMPTION RIGHTS      For       For        Management
      (INDICATES A SPECIAL RESOLUTION)
13    AUTHORITY FOR THE COMPANY TO PURCHASE ITS For       For        Management
      OWN SHARES (INDICATES A SPECIAL
      RESOLUTION)


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IVAX CORP.

Ticker:       IVX            Security ID:  465823102
Meeting Date: AUG 3, 2005    Meeting Type: Annual
Record Date:  JUN 10, 2005

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Betty G. Amos              For       For        Management
1.2   Elect Director Mark Andrews               For       For        Management
1.3   Elect Director Jack Fishman Ph.D.         For       For        Management
1.4   Elect Director Neil Flanzraich            For       For        Management
1.5   Elect Director Phillip Frost M.D.         For       For        Management
1.6   Elect Director Jane Hsiao Ph.D.           For       For        Management
1.7   Elect Director Richard M. Krasno Ph.D.    For       For        Management
1.8   Elect Director David A. Lieberman         For       For        Management
1.9   Elect Director Richard C. Pfenniger Jr.   For       For        Management
1.10  Elect Director Bertram Pitt M.D.          For       For        Management
1.11  Elect Director Z.P. Zachariah M.D.        For       For        Management


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JOHNSON & JOHNSON

Ticker:       JNJ            Security ID:  478160104
Meeting Date: APR 27, 2006   Meeting Type: Annual
Record Date:  FEB 28, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Mary S. Coleman            For       For        Management
1.2   Elect Director James G. Cullen            For       For        Management
1.3   Elect Director Robert J. Darretta         For       For        Management
1.4   Elect Director Michael M. E. Johns        For       For        Management
1.5   Elect Director Ann D. Jordan              For       For        Management
1.6   Elect Director Arnold G. Langbo           For       For        Management
1.7   Elect Director Susan L. Lindquist         For       For        Management
1.8   Elect Director Leo F. Mullin              For       For        Management
1.9   Elect Director Christine A. Poon          For       For        Management
1.10  Elect Director Charles Prince             For       For        Management
1.11  Elect Director Steven S. Reinemund        For       For        Management
1.12  Elect Director David Satcher              For       For        Management
1.13  Elect Director William C. Weldon          For       For        Management
2     Amend Articles to Remove Antitakeover     For       For        Management
      Provision
3     Ratify Auditors                           For       For        Management
4     Disclose Charitable Contributions         Against   Against    Shareholder
5     Require a Majority Vote for the Election  Against   Against    Shareholder
      of Directors


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LABORATORY CORPORATION OF AMERICA HOLDINGS

Ticker:       LH             Security ID:  50540R409
Meeting Date: MAY 17, 2006   Meeting Type: Annual
Record Date:  MAR 31, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Thomas P. Mac Mahon        For       For        Management
1.2   Elect Director Kerrii B. Anderson         For       For        Management
1.3   Elect Director Jean-Luc Belingard         For       For        Management
1.4   Elect Director Wendy E. Lane              For       For        Management
1.5   Elect Director Robert E. Mittelstaedt,    For       For        Management
      Jr.
1.6   Elect Director Arthur H. Rubenstein       For       For        Management
1.7   Elect Director Andrew G. Wallace, M.D.    For       For        Management
1.8   Elect Director M. Keith Weikel, Ph.D.     For       For        Management
2     Amend Non-Employee Director Stock Option  For       For        Management
      Plan
3     Ratify Auditors                           For       For        Management


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MEDIMMUNE, INC.

Ticker:       MEDI           Security ID:  584699102
Meeting Date: MAY 25, 2006   Meeting Type: Annual
Record Date:  MAR 31, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Wayne T. Hockmeyer         For       For        Management
1.2   Elect Director David M. Mott              For       For        Management
1.3   Elect Director David Baltimore            For       For        Management
1.4   Elect Director M. James Barrett           For       Withhold   Management
1.5   Elect Director James H. Cavanaugh         For       For        Management
1.6   Elect Director Barbara Hackman Franklin   For       For        Management
1.7   Elect Director Gordon S. Macklin          For       For        Management
1.8   Elect Director George M. Milne, Jr.       For       For        Management
1.9   Elect Director Elizabeth  H.S. Wyatt      For       For        Management
2     Amend Non-Employee Director Stock Option  For       For        Management
      Plan
3     Ratify Auditors                           For       For        Management


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MEDTRONIC, INC.

Ticker:       MDT            Security ID:  585055106
Meeting Date: AUG 25, 2005   Meeting Type: Annual
Record Date:  JUL 1, 2005

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Shirley Ann Jackson, Ph.D. For       For        Management
1.2   Elect Director Denise M. O'Leary          For       For        Management
1.3   Elect Director Jean-Pierre Rosso          For       For        Management
1.4   Elect Director Jack W. Schuler            For       Withhold   Management
2     Ratify Auditors                           For       For        Management
3     Approve Qualified Employee Stock Purchase For       For        Management
      Plan
4     Amend Non-Employee Director Stock Option  For       For        Management
      Plan


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MEMORY PHARMACEUTICALS CORP.

Ticker:       MEMY           Security ID:  58606R403
Meeting Date: JUL 28, 2005   Meeting Type: Annual
Record Date:  JUN 15, 2005

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect  Director Robert I. Kriebel         For       For        Management
1.2   Elect  Director Michael E. Meyers, M.P.H. For       For        Management
1.3   Elect  Director James R. Sulat            For       Withhold   Management
2     Amend Omnibus Stock Plan                  For       Against    Management
3     Approve Stock/Cash Award to Executive     For       Against    Management
4     Ratify Auditors                           For       For        Management


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MERCK & CO., INC.

Ticker:       MRK            Security ID:  589331107
Meeting Date: APR 25, 2006   Meeting Type: Annual
Record Date:  FEB 24, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Richard T. Clark           For       For        Management
1.2   Elect Director Lawrence A. Bossidy        For       For        Management
1.3   Elect Director William G. Bowen, Ph.D.    For       For        Management
1.4   Elect Director Johnnetta B. Cole, Ph.D.   For       For        Management
1.5   Elect Director William B. Harrison, Jr.   For       For        Management
1.6   Elect Director William N. Kelley, M.D.    For       For        Management
1.7   Elect Director Rochelle B. Lazarus        For       For        Management
1.8   Elect Director Thomas E. Shenk, Ph.D.     For       For        Management
1.9   Elect Director Anne M. Tatlock            For       For        Management
1.10  Elect Director Samuel O. Thier, M.D.      For       For        Management
1.11  Elect Director Wendell P. Weeks           For       For        Management
1.12  Elect Director Peter C. Wendell           For       For        Management
2     Ratify Auditors                           For       For        Management
3     Approve Omnibus Stock Plan                For       For        Management
4     Approve Non-Employee Director Omnibus     For       For        Management
      Stock Plan
5     Limit Executive Compensation              Against   Against    Shareholder
6     Adopt Simple Majority Vote                Against   For        Shareholder
7     Adopt Animal Welfare Standards            Against   Against    Shareholder


--------------------------------------------------------------------------------

MILLENNIUM PHARMACEUTICALS, INC.

Ticker:       MLNM           Security ID:  599902103
Meeting Date: MAY 4, 2006    Meeting Type: Annual
Record Date:  MAR 8, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Deborah Dunsire            For       For        Management
1.2   Elect Director Robert F. Friel            For       For        Management
1.3   Elect Director Norman C. Selby            For       For        Management
2     Amend Qualified Employee Stock Purchase   For       For        Management
      Plan
3     Ratify Auditors                           For       For        Management


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NEUROCRINE BIOSCIENCES, INC.

Ticker:       NBIX           Security ID:  64125C109
Meeting Date: JUN 30, 2006   Meeting Type: Annual
Record Date:  MAY 1, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Joseph A. Mollica, Ph.D.   For       For        Management
1.2   Elect Director Wylie W. Vale, Ph.D.       For       For        Management
1.3   Elect Director W. Thomas Mitchell         For       For        Management
2     Increase Authorized Common Stock          For       For        Management
3     Amend Omnibus Stock Plan                  For       For        Management
4     Amend Qualified Employee Stock Purchase   For       For        Management
      Plan
5     Ratify Auditors                           For       For        Management


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NOBEL BIOCARE HOLDING AG

Ticker:                      Security ID:  H5783Q106
Meeting Date: MAY 3, 2006    Meeting Type: Annual
Record Date:

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     Accept Consolidated Financial Statements  For       For        Management
      and Statutory Reports
2     Accept Financial Statements and Statutory For       For        Management
      Reports
3     Approve Allocation of Income and          For       For        Management
      Dividends of CHF 3.50 per Share
4     Approve Discharge of Board and Senior     For       For        Management
      Management
5     Authorize Repurchase of up to Ten Percent For       For        Management
      of Issued Share Capital; Authorize CHF
      600 Million Transfer from General
      Reserves to Free Reserves to Finance
      Share Repurchases
6.1   Reelect Antoine Firmenich, Robert Lilja,  For       For        Management
      Jane Royston, Rolf Soiron, and Ernst
      Zaengerle as Directors
6.2   Elect Stig Ericsson and Domenico Scala as For       For        Management
      Directors
6.3   Ratify KPMG Fides Peat as Auditors        For       For        Management


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NOVARTIS AG

Ticker:       NVS            Security ID:  66987V109
Meeting Date: FEB 28, 2006   Meeting Type: Annual
Record Date:  JAN 31, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     APPROVAL OF THE ANNUAL REPORT, THE        For       For        Management
      FINANCIAL STATEMENTS OF NOVARTIS AG AND
      THE GROUP CONSOLIDATED FINANCIAL
      STATEMENTS FOR THE YEAR 2005.
2     APPROVAL OF THE ACTIVITIES OF THE BOARD   For       For        Management
      OF DIRECTORS.
3     APPROPRIATION OF AVAILABLE EARNINGS OF    For       For        Management
      NOVARTIS AG AS PER BALANCE SHEET AND
      DECLARATION OF DIVIDEND.
4     REDUCTION OF SHARE CAPITAL.               For       For        Management
5     AMENDMENT TO THE ARTICLES OF              For       For        Management
      INCORPORATION.
6     RE-ELECTION OF PROF. SRIKANT M. DATAR     For       For        Management
      PH.D. FOR A THREE-YEAR TERM.
7     RE-ELECTION OF WILLIAM W. GEORGE FOR A    For       For        Management
      THREE-YEAR TERM.
8     RE-ELECTION OF DR.-ING. WENDELIN          For       For        Management
      WIEDEKING FOR A THREE-YEAR TERM.
9     RE-ELECTION OF PROF. ROLF M. ZINKERNAGEL  For       For        Management
      M.D. FOR A THREE-YEAR TERM.
10    THE ELECTION OF ANDREAS VON PLANTA PH.D.  For       For        Management
      FOR A THREE-YEAR TERM.
11    Ratify Auditors                           For       For        Management


--------------------------------------------------------------------------------

NPS PHARMACEUTICALS, INC.

Ticker:       NPSP           Security ID:  62936P103
Meeting Date: MAY 11, 2006   Meeting Type: Annual
Record Date:  MAR 22, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Michael W. Bonney          For       For        Management
1.2   Elect Director N. Anthony Coles           For       For        Management
1.3   Elect Director Santo J. Costa             For       For        Management
1.4   Elect Director James G. Groninger         For       For        Management
1.5   Elect Director Hunter Jackson             For       For        Management
1.6   Elect Director Joseph Klein III           For       For        Management
1.7   Elect Director Donald E. Kuhla            For       For        Management
1.8   Elect Director Rachel R. Selisker         For       For        Management
1.9   Elect Director Calvin R. Stiller          For       For        Management
1.10  Elect Director Peter G. Tombros           For       For        Management
2     Ratify Auditors                           For       For        Management


--------------------------------------------------------------------------------

PDL BIOPHARMA INC

Ticker:       PDLI           Security ID:  69329Y104
Meeting Date: JUN 14, 2006   Meeting Type: Annual
Record Date:  APR 27, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Karen A. Dawes             For       For        Management
1.2   Elect Director Bradford S. Goodwin        For       For        Management
1.3   Elect Director Mark Mcdade                For       For        Management
2     Ratify Auditors                           For       For        Management
3     Adjourn Meeting                           For       Against    Management


--------------------------------------------------------------------------------

PFIZER INC.

Ticker:       PFE            Security ID:  717081103
Meeting Date: APR 27, 2006   Meeting Type: Annual
Record Date:  MAR 1, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Michael S. Brown           For       For        Management
1.2   Elect Director M. Anthony Burns           For       Withhold   Management
1.3   Elect Director Robert N. Burt             For       For        Management
1.4   Elect Director W. Don Cornwell            For       For        Management
1.5   Elect Director William H. Gray, III       For       For        Management
1.6   Elect Director Constance J. Horner        For       For        Management
1.7   Elect Director William R. Howell          For       For        Management
1.8   Elect Director Stanley O. Ikenberry       For       For        Management
1.9   Elect Director George A. Lorch            For       Withhold   Management
1.10  Elect Director Henry A. McKinnell         For       For        Management
1.11  Elect Director Dana G. Mead               For       Withhold   Management
1.12  Elect Director Ruth J. Simmons            For       For        Management
1.13  Elect Director William C. Steere, Jr.     For       For        Management
2     Ratify Auditors                           For       For        Management
3     Reduce Supermajority Vote Requirement     For       For        Management
4     Establish Term Limits for Directors       Against   Against    Shareholder
5     Social Proposal                           Against   Against    Shareholder
6     Restore or Provide for Cumulative Voting  Against   For        Shareholder
7     Separate Chairman and CEO Positions       Against   For        Shareholder
8     Report on Political Contributions         Against   Against    Shareholder
9     Report on Animal Welfare Policy           Against   Against    Shareholder
10    Reort on Animal-based Testing             Against   Against    Shareholder


--------------------------------------------------------------------------------

SCHERING-PLOUGH CORP.

Ticker:       SGP            Security ID:  806605101
Meeting Date: MAY 19, 2006   Meeting Type: Annual
Record Date:  MAR 20, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Thomas J. Colligan         For       For        Management
1.2   Elect Director C. Robert Kidder           For       For        Management
1.3   Elect Director Carl E. Mundy, Jr.         For       For        Management
1.4   Elect Director Patricia F. Russo          For       For        Management
1.5   Elect Director Arthur F. Weinbach         For       For        Management
2     Ratify Auditor                            For       For        Management
3     Declassify the Board of Directors         For       For        Management
4     Approve Outside Director Stock            For       For        Management
      Awards/Options in Lieu of Cash
5     Approve Omnibus Stock Plan                For       For        Management
6     Require a Majority Vote for the Election  Against   For        Shareholder
      of Directors
7     Adopt Simple Majority Vote Requirement    Against   For        Shareholder


--------------------------------------------------------------------------------

SERONO SA (FORMERLY ARES-SERONO SA)

Ticker:       SRA            Security ID:  81752M101
Meeting Date: APR 25, 2006   Meeting Type: Annual
Record Date:  MAR 24, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     APPROVAL OF SERONO S.A. S ANNUAL REPORT,  For       For        Management
      ACCOUNTS AND CONSOLIDATED ACCOUNTS OF THE
      SERONO GROUP
2     PROPOSED APPROPRIATION OF AVAILABLE       For       For        Management
      EARNINGS IN THE 2005 BALANCE SHEET AND
      DIVIDEND PROPOSAL
3     DISCHARGE OF THE BOARD OF DIRECTORS AND   For       For        Management
      THE MANAGEMENT
4.1   Elect  Director Mr. Ernesto Bertarelli    For       For        Management
4.2   Elect  Director Mr. Pierre E. Douaze      For       For        Management
4.3   Elect  Director Mr. Patrick Gage          For       For        Management
4.4   Elect  Director Mr. Bernard Mach          For       For        Management
4.5   Elect  Director Mr. Sergio Marchionne     For       For        Management
4.6   Elect  Director Mr. Georges Muller        For       For        Management
4.7   Elect  Director Mr. Alberto Togni         For       For        Management
4.8   Elect  Director Mr. Jacques Theurillat    For       For        Management
5     AUDITORS                                  For       For        Management
6     SPECIAL AUDITORS                          For       For        Management
7     CREATION OF A NEW AUTHORIZED CAPITAL      For       Against    Management


--------------------------------------------------------------------------------

TENET HEALTHCARE CORP.

Ticker:       THC            Security ID:  88033G100
Meeting Date: MAY 12, 2006   Meeting Type: Annual
Record Date:  MAR 15, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Trevor Fetter              For       For        Management
1.2   Elect Director Brenda J. Gaines           For       For        Management
1.3   Elect Director Karen M. Garrison          For       For        Management
1.4   Elect Director Edward A. Kangas           For       For        Management
1.5   Elect Director J. Robert Kerrey           For       For        Management
1.6   Elect Director Floyd D. Loop              For       For        Management
1.7   Elect Director Richard R. Pettingill      For       For        Management
1.8   Elect Director James A. Unruh             For       For        Management
1.9   Elect Director J. McDonald Williams       For       For        Management
2     Ratify Auditors                           For       For        Management


--------------------------------------------------------------------------------

TEVA PHARMACEUTICAL INDUSTRIES

Ticker:       TEVA           Security ID:  881624209
Meeting Date: JUL 27, 2005   Meeting Type: Annual
Record Date:  JUN 20, 2005

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     TO RECEIVE AND DISCUSS THE COMPANY S      For       For        Management
      CONSOLIDATED BALANCE SHEET AND THE
      CONSOLIDATED STATEMENTS OF INCOME
2     TO APPROVE THE BOARD OF DIRECTORS         For       For        Management
      RECOMMENDATION THAT THE CASH DIVIDEND FOR
      THE YEAR ENDED DECEMBER 31, 2004
3     TO APPOINT DR. LEORA (RUBIN) MERIDOR AS A For       For        Management
      STATUTORY INDEPENDENT DIRECTOR FOR AN
      ADDITIONAL TERM OF THREE YEARS
4     TO ELECT ELI HURVITZ TO SERVE FOR AN      For       For        Management
      ADDITIONAL THREE-YEAR TERM
5     TO ELECT RUTH CHESHIN TO SERVE FOR AN     For       For        Management
      ADDITIONAL THREE-YEAR TERM
6     TO ELECT PROF. MICHAEL SELA TO SERVE FOR  For       For        Management
      AN ADDITIONAL THREE-YEAR TERM
7     TO ELECT HAROLD SNYDER TO SERVE FOR AN    For       For        Management
      ADDITIONAL THREE-YEAR TERM
8     TO APPROVE THE PURCHASE OF DIRECTOR S AND For       Against    Management
      OFFICER S LIABILITY INSURANCE FOR THE
      DIRECTORS AND OFFICERS OF THE COMPANY
9     TO APPROVE THE COMPANY S 2005 OMNIBUS     For       Against    Management
      LONG-TERM SHARE INCENTIVE PLAN
10    TO APPROVE AN AMENDMENT TO PROVISIONS OF  For       For        Management
      THE COMPANY S ARTICLES RELATING TO THE
      INDEMNIFICATION OF DIRECTORS AND OFFICERS
11    TO APPROVE AN AMENDMENT TO THE COMPANY S  For       For        Management
      ARTICLES THAT WOULD INCREASE THE
      REGISTERED SHARE CAPITAL OF THE COMPANY
12    TO APPOINT KESSELMAN & KESSELMAN, A       For       For        Management
      MEMBER OF PRICEWATERHOUSECOOPERS
      INTERNATIONAL LTD., AS THE COMPANY S
      INDEPENDENT REGISTERED PUBLIC ACCOUNTING
      FIRM AND TO DETERMINE THEIR COMPENSATION


--------------------------------------------------------------------------------

TEVA PHARMACEUTICAL INDUSTRIES

Ticker:       TEVA           Security ID:  881624209
Meeting Date: MAY 4, 2006    Meeting Type: Annual
Record Date:  MAR 27, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     TO RECEIVE AND DISCUSS THE COMPANY S      For       For        Management
      CONSOLIDATED BALANCE SHEET AS OF DECEMBER
      31, 2005 AND THE CONSOLIDATED STATEMENTS
      OF INCOME FOR THE YEAR THEN ENDED.
2     TO APPROVE THE BOARD OF DIRECTORS         For       For        Management
      RECOMMENDATION THAT THE CASH DIVIDEND FOR
      THE YEAR ENDED DECEMBER 31, 2005 BE
      DECLARED FINAL.
3     TO APPOINT PROF. GABRIELA SHALEV AS A     For       For        Management
      STATUTORY INDEPENDENT DIRECTOR FOR AN
      ADDITIONAL TERM OF THREE YEARS.
4     TO ELECT THE FOLLOWING DIRECTOR TO SERVE  For       For        Management
      FOR A THREE-YEAR TERM: DR. PHILLIP FROST
5     TO ELECT THE FOLLOWING DIRECTOR TO SERVE  For       For        Management
      FOR A THREE-YEAR TERM: CARLO SALVI
6     TO ELECT THE FOLLOWING DIRECTOR TO SERVE  For       For        Management
      FOR A THREE-YEAR TERM: DAVID SHAMIR
7     TO APPROVE THE PURCHASE OF DIRECTOR S AND For       Against    Management
      OFFICER S LIABILITY INSURANCE FOR THE
      DIRECTORS AND OFFICERS OF THE COMPANY.
8     TO APPROVE AN AMENDMENT TO SECTION 60(E)  For       For        Management
      OF THE COMPANY S ARTICLES OF ASSOCIATION.
9     TO APPROVE AN INCREASE IN THE             For       For        Management
      REMUNERATION PAID TO THE DIRECTORS OF THE
      COMPANY (OTHER THAN THE CHAIRMAN OF THE
      BOARD).
10    TO APPOINT KESSELMAN & KESSELMAN, AS THE  For       For        Management
      INDEPENDENT REGISTERED PUBLIC ACCOUNTING
      FIRM AND DETERMINE THEIR COMPENSATION.


--------------------------------------------------------------------------------

TEVA PHARMACEUTICAL INDUSTRIES

Ticker:       TEVA           Security ID:  881624209
Meeting Date: OCT 27, 2005   Meeting Type: Special
Record Date:  SEP 22, 2005

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     TO APPROVE THE ISSUANCE OF ORDINARY       For       For        Management
      SHARES OF TEVA, PURSUANT TO THE AGREEMENT
      AND PLAN OF MERGER, DATED JULY 25, 2005,
      BY AND AMONG IVAX CORPORATION, TEVA AND
      TWO WHOLLY OWNED SUBSIDIARIES OF TEVA,
      IVORY ACQUISITION SUB, INC. AND IVORY
      ACQUISITION SUB II


--------------------------------------------------------------------------------

THERMO ELECTRON CORP.

Ticker:       TMO            Security ID:  883556102
Meeting Date: MAY 24, 2006   Meeting Type: Annual
Record Date:  MAR 29, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Peter J. Manning           For       Withhold   Management
1.2   Elect Director Jim P. Manzi               For       Withhold   Management
1.3   Elect Director Elaine S. Ullian           For       Withhold   Management
2     Ratify Auditors                           For       For        Management
3     Require a Majority Vote for the Election  Against   Against    Shareholder
      of Directors


--------------------------------------------------------------------------------

UNITEDHEALTH GROUP INCORPORATED

Ticker:       UNH            Security ID:  91324P102
Meeting Date: MAY 2, 2006    Meeting Type: Annual
Record Date:  MAR 21, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director James A. Johnson           For       Withhold   Management
1.2   Elect Director Douglas W. Leatherdale     For       For        Management
1.3   Elect Director William W. McGuire, M.D.   For       For        Management
1.4   Elect Director Mary O. Mundinger, Ph.D.   For       Withhold   Management
2     Ratify Auditors                           For       For        Management
3     Require a Majority Vote for the Election  Against   For        Shareholder
      of Directors


--------------------------------------------------------------------------------

VARIAN MEDICAL SYSTEMS INC

Ticker:       VAR            Security ID:  92220P105
Meeting Date: FEB 16, 2006   Meeting Type: Annual
Record Date:  DEC 19, 2005

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Timothy E. Guertin         For       For        Management
1.2   Elect Director David W. Martin            For       For        Management
1.3   Elect Director R Naumann-Etienne          For       For        Management
1.4   Elect Director Kent J. Thiry              For       For        Management
2     Amend Omnibus Stock Plan                  For       For        Management
3     Ratify Auditors                           For       For        Management


--------------------------------------------------------------------------------

WYETH

Ticker:       WYE            Security ID:  983024100
Meeting Date: APR 27, 2006   Meeting Type: Annual
Record Date:  MAR 3, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Robert Essner              For       For        Management
1.2   Elect Director John D. Feerick            For       For        Management
1.3   Elect Director Frances D. Fergusson,      For       For        Management
      Ph.D.
1.4   Elect Director Victor F. Ganzi            For       For        Management
1.5   Elect Director Robert Langer              For       For        Management
1.6   Elect Director John P. Mascotte           For       For        Management
1.7   Elect Director Mary Lake Polan, M.D.,     For       For        Management
      Ph.D.
1.8   Elect Director Gary L. Rogers             For       For        Management
1.9   Elect Director Ivan G. Seidenberg         For       For        Management
1.10  Elect Director Walter V. Shipley          For       For        Management
1.11  Elect Director John R. Torell, III        For       For        Management
2     Ratify Auditors                           For       For        Management
3     Approve Non-Employee Director Omnibus     For       For        Management
      Stock Plan
4     Report on Product Availability in Canada  Against   Against    Shareholder
5     Report on Political Contributions         Against   Against    Shareholder
6     Report on Animal welfare Policy           Against   Against    Shareholder
7     Require a Majority Vote for the Election  Against   For        Shareholder
      of Directors
8     Separate Chairman and CEO Positions       Against   Against    Shareholder
9     Adopt Simple Majority Vote Requirement    Against   Against    Shareholder

========== END NPX REPORT




                                   SIGNATURES

         Pursuant to the requirements of the Investment Company Act of 1940, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

(Registrant):        Morgan Stanley Health Sciences Trust
                   -------------------------------------------------------------

By  (Signature and Title):
                                    /s/ Ronald E. Robison

                President and Principal Executive Officer - Office of the Funds
         -----------------------------------------------------------------------



Date          August 28, 2006
            --------------------------------------------------------------------



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