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Id:8794
Autor:Cabezas Sánchez, César Augusto.
Título:Epidemiología de la hepatitis viral B en el Perú^ies / Epidemiology of viral hepatitis B in Peru
Fuente:Bol. Inst. Nac. Salud;16(1/2):9-9, ene.-feb. 2010. .
Descriptores:Virus de la Hepatitis B
Hepatitis B/epidemiología
Perú
Límites:Humanos
Masculino
Femenino
Medio Electrónico:http://www.ins.gob.pe/RepositorioAPS/0/0/par/BOLETIN_INS_2010/boletin%20Ene_Feb_2010.pdf / es
Localización:PE14.1


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Id:8313
Autor:Casey, J. L; Niro, G. A; Engle, R. E; Vega, A; Gomez, H; McCarthy, M; Watts, DM; Hyams, KC; Gerin, JL
Título:Hepatitis B virus (HBV)/hepatitis D virus (HDV) coinfection in outbreaks of acute hepatitis in the Peruvian Amazon basin: the roles of HDV genotype III and HBV genotype F^ien ..-
Fuente:Chicago; University of Chicago Press; 1996. 920-926 p. ^btab, ^bgraf.
Resumen:Recurring outbreaks of acute hepatitis have been a significant cause of morbidity and mortality among Peruvian military personnel stationed in the Amazon Basin region of Peru. The role of hepatitis B virus (HBV) and hepatitis D virus (HDV) infection was investigated as the possible cause of acute hepatitis among 88 military patients stationed at four different jungle outposts during 1992-1993. Analysis of serum markers indicated that 95 percent (84/88) had evidence of acute HBV infection; 64 percent (54/84) were also infected with HDV. Genetic analysis of PCR-amplified HDV and HBV fragments showed exclusively HDV genotype III and HBV genotype F. Furthermore, HDV RNA sequences were similar among patients from the same outpost but different from those at other jungle locations. The data suggested focal sources of HDV infection in the jungle environment of the outposts and, further, confirmed the unique association of HDV genotype III with severe cases of human disease in northern South America. (AU)^ien.
Descriptores:Virus de la Hepatitis B
Hepatitis D
Perú
 Ecosistema Amazónico
Límites:Humanos
Localización:PE14.1


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Id:8309
Autor:Weber, B
Título:Recent developments in the diagnosis and monitoring of HBV infection and role of the genetic variability of the S gene^ien ..-
Fuente:Londres; Future Drugs Ltd; 2005. 75-91 p. ^bgraf, ^btab.
Resumen:Recent developments in the laboratory diagnosis of hepatitis B virus infection include the optimization of key serologic markers, including hepatitis B virus surface antigen and antihepatitis B virus core antibody, as well as the development of automated nucleic acid amplification assays. There is still a lack of standardization for nucleic acid amplification assays that are used for the monitoring of antiviral therapy and follow-up of chronic infection and the clinical significance of hepatitis B virus DNA levels need to be clarified. Although highly sensitive automated nucleic acid amplification assays for blood donor screening are available, their implementation is still subject to discussion and certain countries rejected hepatitis B virus DNA testing for blood donation due to poor cost effectiveness. Genetic variability of hepatitis B virus constitutes a major challenge for diagnosis of hepatitis B virus infection, particularly with regard to hepatitis B virus surface antigen detection, antihepatitis B virus surface antigen quantification and nucleic acid amplification assays. The performances of hepatitis B virus surface antigen enzyme immunoassays in regard to genotype and surface antigen variability need to be further improved. Polyclonal antibody-based hepatitis B virus surface antigen enzyme immunoassays, although they cannot guarantee 100 percent sensitivity, demonstrate superior S gene mutant recognition to assays using monoclonal capture and tracer antibodies. Isolated antihepatitis B virus core reactivity is an unusual but frequent result, which requires a test algorithm for resolution and hepatitis B virus DNA detection with sensitive nucleic acid amplification assays in order to exclude occult hepatitis B virus infection. (AU)^ien.
Descriptores:Hepatitis B/diagnóstico
Virus de la Hepatitis B
Localización:PE14.1


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Id:6478
Autor:Organización Mundial de la Salud*.
Título:Progresos en el estudio de la hepatitis vírica: informe del Comité de Expertos de la OMS en Hepatitis Vírica^ies ..-
Fuente:Ginebra; OMS; 1977. 72 p. . (Serie de Informes Técnicos, 602).
 (Serie de Informes Técnicos, 602).
Descriptores:Virus de la Hepatitis B
Virus de la Hepatitis A
Localización:PE14.1; CENTRAL-02052



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