Hepatitis A

Liver infection from contaminated food or water. Picornavirus causing acute hepatitis without chronic progression.

Key facts

CauseVirus
SpreadFecal-oral
Incubation15–50 days
VaccineYes
TreatmentSupportive care

Did you know?

Hepatitis A demonstrates "fecal-oral stealth transmission" with as few as 10 viral particles causing infection, allowing a single infected food handler to contaminate entire restaurants. The virus creates a cruel paradox where patients are most contagious during the 2 weeks before symptoms appear, spreading disease while feeling perfectly healthy and going about normal activities.

Next: Hepatitis B

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