Published in Vaccine Weekly, January 12th, 2000
R. Tapiaconyer and colleagues at the Prevencion and Control Enfermedades in Mexico City conducted a multicenter study involving 12,000 participants from six Latin American countries and who were stratified for age ("Hepatitis A in Latin America: A Changing Epidemiologic Pattern," American Journal of Tropical Medicine and Hygiene, November 1999;61(5):825-829).
Among the researchers' findings:
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