Anti-HAV Elisa is a fast test for the qualitative detection of antibodies to Hepatitis A virus in serum or plasma (heparin, citrate or EDTA) specimens. This is an enzyme linked immunosorbent assay (ELISA) which utilizes HAV Ag on microtiter wells and human Peroxidase-conjugated Anti-HAV in a competition principle to detect Anti-HAV levels in serum or plasma. Specimens with absorbance values greater than the Cutoff Value are considered NONREACTIVE for Anti-HAV Specimens with absorbance values lower or equal than the Cutoff Value are considered REACTIVE for Anti-HAV. The test has to be repeated in duplicate for specimens with absorbance value within the retest range (Cutoff Value ± 10 %) and interpreted as above. If the absorbance of any of the specimens retested in duplicate is still within the retest range, it is suggested to test follow-up samples of the patient.