Prevalence of antibodies against hepatitis A virus among the Kuikuro and Kaiabi Indians of Xingu National Park, Brazil
Keywords:
Hepatitis A, Antibodies, South American Indians, SerologyAbstract
A seroprevalence study to detect total antibodies against Hepatitis A Virus was done with 220 samples from 589 Native Indians from Xingu National Park, Brazil, in five Kaiabi and Kuikuro villages, the most populous ethnic groups. Using a commercial immunoassay kit we detected 97.7% positive samples (95% Confidence Interval: 95%-99%). We noticed a precocious seroconversion, before the age of six years, when the disease is usually asymptomatic. These results are similar to those found in the literature in non-Indian population studies of the Northern, Northeastern and West Central regions of Brazil. They suggest that it is not necessary to introduce vaccination against Hepatitis A in these highly endemic populations.Downloads
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Published
2007-06-01
Issue
Section
Hepatitis
How to Cite
Lafer, M. M., Moraes-Pinto, M. I. de, & Weckx, L. Y. (2007). Prevalence of antibodies against hepatitis A virus among the Kuikuro and Kaiabi Indians of Xingu National Park, Brazil . Revista Do Instituto De Medicina Tropical De São Paulo, 49(3), 155-157. https://www.revistas.usp.br/rimtsp/article/view/31082