Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
An undated photograph of Mikhail S. Balayan, the Russian virologist who first identified hepatitis E virus (HEV) particles in extracts of his stool following ingestion of a fecal extract prepared from Soviet soldiers afflicted with enterically transmitted non-A, non-B (ET-NANB). (Image provided by M. Mikhailov.)
