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ABSTRACT: Objectives
To estimate hepatitis B virus (HBV) seroprevalence from natural infection or vaccination in 10-25-year-olds in Mexico, using the 2012 National Health and Nutrition Survey (ENSANUT).Methods
Randomly selected serum samples (1,581) from adolescents and young adults, representative of 38,924,584 Mexicans, were analyzed to detect hepatitis B surface antigen (HBsAg), hepatitis B surface antibody (anti-HBs) and hepatitis B core antibody (anti-HBc). Weighted HBV seroprevalence in the Mexican population and association with sociodemographic variables were calculated.Results
Overall weighted seroprevalence from natural infection (positive for anti-HBs and anti-HBc) was 0.23% (95% confidence interval [95% CI] 0.10-0.52). No HBsAg was detected, indicating no acute or chronic infection. Vaccine-derived immunity (positive ? 10.0 mIU/ml for anti-HBs and negative to anti-HBc) was 44.7% (95% CI: 40.2-49.4) overall; lower in persons aged 20-25 years (40.83%) than in persons aged 10-19 years (47.7%). Among the population analyzed, 54.2% (95% CI: 49.6-58.8) were seronegative to HBV (negative for all three markers) and no sociodemographic risk factors were identified.Conclusions
HBV seroprevalence from natural infection was low. Vaccination-induced immunity was higher among Mexican adolescents than young adults, possibly due to vaccination policies since 1999.
SUBMITTER: Lopez-Gatell H
PROVIDER: S-EPMC6422518 | biostudies-literature | 2019
REPOSITORIES: biostudies-literature
López-Gatell Hugo H García-García Lourdes L Echániz-Avilés Gabriela G Cruz-Hervert Pablo P Olamendi-Portugal María M Castañeda-Desales Deyanira D Sanchez-Alemán Miguel Ángel MÁ Romero-Martínez Martin M DeAntonio Rodrigo R Cervantes-Apolinar Maria Yolanda MY Cortes-Alcalá Ricardo R Alpuche-Aranda Celia C
Human vaccines & immunotherapeutics 20181105 2
<h4>Objectives</h4>To estimate hepatitis B virus (HBV) seroprevalence from natural infection or vaccination in 10-25-year-olds in Mexico, using the 2012 National Health and Nutrition Survey (ENSANUT).<h4>Methods</h4>Randomly selected serum samples (1,581) from adolescents and young adults, representative of 38,924,584 Mexicans, were analyzed to detect hepatitis B surface antigen (HBsAg), hepatitis B surface antibody (anti-HBs) and hepatitis B core antibody (anti-HBc). Weighted HBV seroprevalence ...[more]