When new vaccines are developed, the epidemiology and pathology of vaccine-preventable
infectious diseases are revisited and rewritten. This was true with hepatitis
A vaccines more than 10 years ago. Hepatitis A epidemiology shows that an
increasing part of the adolescent and adult population in industrialized countries
is becoming susceptible to hepatitis A virus infection, as infection in childhood
Van Damme P, Van Herck K. Effect of Hepatitis A Vaccination Programs. JAMA. 2005;294(2):246–248. doi:10.1001/jama.294.2.246
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