Prevalence of hepatitis B infection in children under 5 years old on indigenous communities of the peruvian amazonia after immunization interventions
DOI:
https://doi.org/10.17843/rpmesp.2014.312.36Keywords:
Hepatitis B, Immunization, Child, Indigenous population, SeroprevalenceAbstract
Objectives. To determine the prevalence of hepatitis B virus (HVB) infection and seroprotection in indigenous children living in three draining basins of the Peruvian Amazon. Materials and methods. A cross sectional study was conducted in three draining basins (Pastaza, Morona and Lower Urubamba rivers), home to six indigenous populations: shapra, candoshi, machiguenga, yine, ashaninka and nanti. Children under 5 years were included. A survey and review of the vaccination card was applied, and a serum sample was processed with ELISA for HBsAg, total anti-HBc and anti-HBs was obtained, defining “seroprotected children” if they were reactive to anti-HBs and non-reactive to anti-HBc. Results. A total of 742 children under 5 years old residents in six indigenous communities were included in the study. 380 (51.2%) were male and 169 (22.9%) one year old or younger. Regarding recorded HVB vaccination on the card, only 434 (58.5%) had received three doses; 208 (38.8%) received the first dose within 24 hours. No cases were detected with HBsAg. 88.8% of children had seroconverted, varying between 67-100% across the populations. Conclusions. No cases of chronic HBV infection were detected. The vaccination coverage by card revision is low, contrasting with high seroconversion rates.Downloads
Download data is not yet available.
Downloads
Published
2014-07-02
Issue
Section
Research Articles
How to Cite
1.
Cabezas-Sánchez C, Trujillo-Villarroel O, Zavaleta-Cortijo C, Culqui-Lévano D, Suarez-Jara M, Cueva-Maza N, et al. Prevalence of hepatitis B infection in children under 5 years old on indigenous communities of the peruvian amazonia after immunization interventions. Rev Peru Med Exp Salud Publica [Internet]. 2014 Jul. 2 [cited 2024 Dec. 13];31(2). Available from: https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/36