Abstract:1 Current Knowledge about the Pathogen 1.1 Characteristics of Hepatitis A Virus The clinical features of hepatitis A have been known for a long time. However, the pathogen (hepatitis A virus (HAV)) was firstly identified in 1973 with the aid of immune electron microscopy [1]. HAV is classified in the family of Picornaviridae , genus Hepatovirus . It is a small, spherical, non-enveloped virus with a diameter of approximately 30 nm. The capsid of the viral particle is made up of 60 copies of the three viral str… Show more
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