Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of Amendment No. 10 to the Schedule 13D originally filed on September 5, 2006 (including additional amendments thereto) with respect to the Common Stock of Rural/Metro Corporation.  This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated:  October 26, 2009

ACCIPITER LIFE SCIENCES FUND, LP
By:	Candens Capital, LLC its general partner
By:	/s/ Gabe Hoffman
	Gabe Hoffman, Managing Member

ACCIPITER LIFE SCIENCES FUND (OFFSHORE), LTD.
By:	Accipiter Capital Management, LLC its investment manager
By:	/s/ Gabe Hoffman
	Gabe Hoffman, Managing Member

ACCIPITER CAPITAL MANAGEMENT, LLC
By:	/s/ Gabe Hoffman
	Gabe Hoffman, Managing Member

CANDENS CAPITAL, LLC
By:	/s/ Gabe Hoffman
	Gabe Hoffman, Managing Member

/s/ Gabe Hoffman

GABE HOFFMAN