<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED BALANCE SHEET AND CONSOLIDATED STATEMENT OF OPERATIONS FOR THE FIRST QUARTER 10-Q OF ADVANCED VIRAL RESEARCH CORP. FOR THE THREE MONTHS ENDED MARCH 31, 1998 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> MAR-31-1998 <CASH> 1,735,681 <SECURITIES> 566,000 <RECEIVABLES> 0 <ALLOWANCES> 0 <INVENTORY> 19,729 <CURRENT-ASSETS> 2,351,394 <PP&E> 796,963 <DEPRECIATION> 218,206 <TOTAL-ASSETS> 3,253,058 <CURRENT-LIABILITIES> 268,243 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 2,902 <OTHER-SE> 2,363,870 <TOTAL-LIABILITY-AND-EQUITY> 3,253,058 <SALES> 0 <TOTAL-REVENUES> 29,397 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 851,987 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 275,248 <INCOME-PRETAX> (1,097,838) <INCOME-TAX> (1,097,838) <INCOME-CONTINUING> (1,097,838) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (1,097,838) <EPS-PRIMARY> 0 <EPS-DILUTED> 0