The FDA approved the anti-HCV ELISA test and US blood banks commenced screening. Linked evidence NHBT0000189_123 - An announcement letter from Roy N Davis informing everyone that the US Food and Drug Administration licensed the Ortho HCV Elisa Test System on 2 May 1990 - 04 May 1990 Chronology Information Date: 2 May 1990 Chapter/issue Hepatitis C Screening