Fig. 1From: Seroprevalence of avian hepatitis E virus and avian leucosis virus subgroup J in chicken flocks with hepatitis syndrome, ChinaSeroprevalence (%) of avian HEV and ALV-J in chickens within various age groups in Shandong and Shaanxi provinces, China. Anti-avian HEV positivity is presented as black bars. Anti-ALV-J positivity is presented as white bars Back to article page