#epidemiology statistics

[er-cryptid]

Hepatitis A Statistics

-- 15% of infected people have recurring symptoms in a 6 to 9 month period

-- occurs in epidemics

-- during epidemics, number of US cases reached 35,000

-- case number decreased in the early 1990s when a vaccine began to be used

-- 1/3 of Americans have hepatitis A at some point in their life

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