We analyzed immunogenicity difference between p239 and p179 HEV vaccines.
We assessed this difference using HEV antigens derived from different HEV genotypes.
p239-induced IgGs reacted strongly against HEV genotype 1 and 2-generated antigens.
p179-induced IgGs reacted strongly against HEV genotype 3 and 4- derived antigens.
This difference is due to the presence of genotype-specific neutralizing epitopes.