FIG. 2.

HEV-specific IgA antibodies measured by immunoblot assay in controls and in hepatitis patients. Serum samples were from controls (n = 17), 9 type 1-infected PCR-positive patients (10 samples), 14 type 3-infected PCR-positive patients (15 samples), 5 type 1 and 8 (9 samples) follow-up samples from serologically confirmed HEV patients based on a positive IgM and IgG response or PCR positive result in a previous sample, 20 patients with IgG response in the immunoblot assay (score of 4 to 12) in the absence of an IgM response, and sera from 6 hepatitis patient with an IgM response only.