Child health · UKMLA & AKT
Hepatitis A
A free high-yield preview for the UKMLA Applied Knowledge Test, covering how to recognise this condition. The full SA Note notes add investigations, management and complications, with practice questions on this topic.
Key high-yield points
- Most common cause of acute viral hepatitis worldwide - faecal-oral transmission
- Does NOT cause chronic liver disease, no carrier state, confers lifelong immunity after infection
- Incubation period ~4-5 weeks; viral shedding greatest in prodromal phase (before jaundice) - peak infectivity
- Children <5 years: 80-95% asymptomatic but infectious; adults: symptomatic in majority, severity increases with age
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