Hepatitis A

a viral disease with a short incubation period (usually 15 to 50 days), caused by hepatitis A virus (HAV), a member of the family Picornaviridae, often transmitted by fecal-oral route

Description
Hepatitis A may be inapparent, mild, severe, or occasionally fatal and occurs sporadically or in epidemics, commonly in school-age children and young adults. Necrosis of periportal liver cells with lymphocytic and plasma cell infiltration is characteristic, and jaundice is a common symptom.