Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
ASSETS
Cash and cash equivalents	$ 221,807	$ 283,341
Grant funds and other receivables	520,509	68,603
Prepaid expenses and other current assets	67,895	95,320
Total current assets	810,211	447,264
Property and equipment, net (Note 5)	9,612	10,606
Deposits	11,010	11,010
Total assets	830,833	468,880
Current liabilities:
Accounts payable	740,829	152,653
Accrued expenses (Note 6)	1,917,425	1,851,040
Current portion of notes payable (Note 7)	12,048	12,500
Total current liabilities	2,670,302	2,016,193
Note payable, net of current portion (Note 7)	24,781	27,243
Total liabilities	2,695,083	2,043,436
Commitments (Note 8)
Stockholders’ equity (deficiency):
Preferred Stock, $.01 par value (Note 9): Authorized shares – 10,000,000 Issued and outstanding shares – 400 and 2,486 March 31, 2020 and December 31, 2019, respectively	376,095	1,932,433
Common stock, $.001 par value: Authorized shares – 600,000,000 Issued and outstanding shares – 13,791,601 and 299,835 at March 31, 2020 and December 31, 2019, respectively	13,792	300
Additional paid-in capital	41,189,070	39,340,224
Accumulated deficit	(43,443,207)	(42,847,513)
Total stockholders’ equity (deficiency)	(1,864,250)	(1,574,556)
Total liabilities and stockholders’ equity (deficiency)	$ 830,833	$ 468,880

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Balance Type:	credit
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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).