Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 190,969	$ 312,727
Grant funds and other receivables		59,758
Prepaid expenses and other current assets	148,180	75,589
Total current assets	339,149	448,074
Property and equipment, net	21,221	31,151
Deposits	11,010	11,010
Total assets	371,380	490,235
LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIENCY)
Accounts payable	66,032	77,581
Accrued expenses (Note 6)	998,062	733,711
Current portion of note payable	4,168
Total current liabilities	1,068,262	811,292
Note payable, net of current portion	45,832
Total liabilities	1,114,094	811,292
Commitments (Note 8)
Stockholders’ equity (deficiency):
Common stock, $.001 par value: Authorized shares – 600,000,000 Issued and outstanding shares – 164,736,810 and 106,736,810 at June 30, 2018 and December 31, 2017	164,737	106,737
Additional paid-in capital	36,558,210	35,589,911
Accumulated deficit	(39,175,646)	(37,916,790)
Total stockholders’ equity (deficiency)	(742,714)	(321,057)
Total liabilities and stockholders’ equity (deficiency)	371,380	490,235
Series B Convertible Preferred Stock [Member]
Stockholders’ equity (deficiency):
Convertible Preferred Stock	76,095	76,095
Series C Convertible Preferred Stock [Member]
Stockholders’ equity (deficiency):
Convertible Preferred Stock	842,990	842,990
Series D Convertible Preferred Stock [Member]
Stockholders’ equity (deficiency):
Convertible Preferred Stock	200,900	980,000
Series E Convertible Preferred Stock [Member]
Stockholders’ equity (deficiency):
Convertible Preferred Stock	$ 590,000