Fig. 2.
IgM capture ELISA of serial serum samples from three patients with acute hepatitis C (A–C). Capturing of IgM was the same as for Fig. 1 but the bound antibody was detected by non-labeled AN-Ag followed by horseradish peroxidase-labeled monoclonal antibody 1F12. ALT (-●-) is expressed by international units per liter. ELISA data (-○-) are expressed by OD492.