1. World Health Organization. (2013) http://www.who.int/mediacentre/factsheets/fs328/en/index.html.Acessed 05 may 2013.
2. Declining hepatitis A seroprevalence: a global review and analysis;KH Jacobsen;Epidemiol Infect,2004
3. The effects of socioeconomic development on worldwide hepatitis A virus seroprevalence patterns;KH Jacobsen;Int J,2005
4. Brasil. Ministério da Saúde (2012) Secretaria de Vigilância em Saúde. Apresentação do dia Mundial da luta contra a hepatite. Hepatites virais no Brasil. Departamento de DST, Aids e Hepatites Virais.
5. Changing epidemiology of hepatitis A in Brazil: reassessing immunization policy;CL Vitral;J Viral Hepat,2008