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Gaceta médica de México

versión impresa ISSN 0016-3813

Resumen

RIVERA-LOPEZ, María Rebeca F.; ZAVALA-MENDEZ, Celia  y  ARENAS-ESQUEDA, Alfonso. Prevalence for Seropositivity for HIV, Hepatitis B, and Hepatitis C in Blood Donors. Gac. Méd. Méx [online]. 2004, vol.140, n.6, pp.657-660. ISSN 0016-3813.

Despite utilizing different actions to render blood safe for transfusions, we continue to have the risk of transmitting some viral infections. For this reason, it is important to determine prevalence of infections due to HIV and hepatitis B and hepatitis C viruses in blood donors. Previous studies from México indicate that HIV prevalence is 0.01 to 0.13%, while it is 0.11 to 1.22% for hepatitis B, and for hepatitis C, prevalence is 0.47 to 1.47%. We are checking the results of the screening tests (ELISA 3rd generation and chemiluminescent immunoassays) from blood donors studied at the Central Blood Bank (Banco Central de Sangre) at the Mexican Institute of Social Security's (IMSS) Twentieth First Century National Medical Center in Mexico City from 1995 to 2002. Reactive results were studied by confirmatory tests, Western Blot for HIV, AgHBs neutralization test for hepatitis B, and RIBA-HCV 3.0 for hepatitis C Reactive results from 513,062 blood donors confirmed for HIV were 0.07%, reactive results and confirmation of hepatitis B from 511,733 blood donors were 0.13%, and reactive results and confirmation of hepatitis C from 511,115 blood donors were 0.31%. Rates obtained are low when compared with results of previous studies in Mexico for HIV, hepatitis B, and hepatitis C. It may be possible than these low rates indicate the positive impact obtained from preventive actions, better strategies of detection of blood donors with high risk, and the advantage of working with a fully automated test system with state-of-the-art technology.

Palabras llave : Prevalence of HIV antibodies; prevalence of hepatitis B and C; blood donors.

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