Investation of an outbreak of hepatitis E virus 4d reveals the

virus 4dGlobally, outbreaks of hepatitis E caused by water source contamination have been reported, such as the HEV genotype 4d outbreak in a nursing home in Zhejiang Province,Globally, outbreaks of hepatitis E caused by water source contamination have been reported, such as the HEV genotype 4d outbreak in a nursing home in Zhejiang Province,