The document summarizes hepatitis A and E viruses. Hepatitis A virus is a picornavirus transmitted through the fecal-oral route. It has worldwide distribution and causes self-limited infection. Hepatitis E virus is an enterically transmitted RNA virus that causes acute hepatitis, predominantly affecting those aged 15-40 years in developing countries. Both viruses present with acute hepatitis symptoms like jaundice and elevated liver enzymes. Diagnosis involves IgM antibody testing. Treatment is supportive and prevention focuses on sanitation and hygiene.