The IDEXX Fasciolosis Verification Test is made reliable by using the f2 antigen purified from Fasciola extracts. The f2 antigen is very immunogenic and highly specific for Fasciola hepatica. It has been standardized according to the hemagglutination method (HA) developed by the team of Dr. Levieux (INRA). It has been validated for bovine and ovine sera, and on bovine milk. This test lets you determine the infection status of a herd and estimate treatment efficacy by following the rate of antibodies over time.