. Author manuscript; available in PMC: 2021 Jun 1.

Published in final edited form as: Gastroenterol Clin North Am. 2020 Mar 29;49(2):191–199. doi: 10.1016/j.gtc.2020.01.002

Table 1.

Hepatitis A in a nutshell

Epidemiology	Estimated 1.4 million cases per year globally Infections can be sporadic or epidemic
Transmission	Fecal-oral via Person-to-person contact Consumption of contaminated food or water
Diagnosis	Presence of IgM antibodies to HAV
Treatment	Supportive
Classical presentation	Children Asymptomatic Adults Jaundice, hyperbilirubinemia, RUQ pain, anorexia
Unusual presentations	Relapsing hepatitis Prolonged cholestasis Acute liver failure
Prevention	HAV vaccine
Postexposure prophylaxis	HAV vaccine HAV immune globulin

Abbreviation: RUQ, right upper quadrant.