Hepatitis A natural history, complications and prognosis

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Complications

There are usually no complications. One in a thousand cases becomes fulminant hepatitis, which can be life threatening.

The United States Centers for Disease Control and Prevention (CDC) in 1991 reported a low mortality rate of 4 deaths per 1000 cases for the general population but a higher rate of 17.5 per 1000 in those aged 50 and over.

Young children who are infected with hepatitis A typically have a milder form of the disease, usually lasting from 1-3 weeks, whereas adults tend to experience a much more severe form of the disease.
Adults are often confined to bed and minimal activity for about 4 weeks and have to stop their work for one to three months or longer.
Many adults take up to 36 months and occasionally longer to recover entirely.
Symptoms that may be experienced after the first month or two are low immunity: It is much easier to catch minor infections and for these infections to linger longer than they normally would.
Many people experience a slow but sure improvement, over this later period.
They are generally able to function fairly normally, still needing more sleep and reduced athletic activity.
It is common for recovering patients to experience occasional "off" days, during which they need to rest more.
Hepatitis A can be sexually transmitted, especially during oral-anal contact, but not after the patient has recovered.