Figure 1
From: Experimental infection of Balb/c nude mice with Hepatitis E virus
Anti-HEV IgG in nude mice as determined by ELISA. Anti-HEV IgG was significantly elevated in the inoculated group (No.2, pink line) but increases were slower to appear in the contact-exposed group (No.3, yellow line). No changes were seen in the negative control group (No.1, dark line). The cutoff is 0.22+ the mean values of the negative control (blue line).