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patients and those on immuno-suppression. There are four known genotypes of HEV. The most recent candidate vaccines have been two… Expand Hepatitis E virus (HEV) infection is one of the main causes of acute hepatitis worldwide. A recombinant hepatitis E vaccine, HEV… Expand The candidate particulate hepatitis E vaccine, HEV 239, has been shown to be an efficacious vaccine in primates, and clinical… Expand