Cochrane Database of Systematic Reviews 2008
DOI: 10.1002/14651858.cd001833.pub2
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Vaccines for post-exposure prophylaxis against varicella (chickenpox) in children and adults

Abstract: BACKGROUND: Live attenuated varicella vaccines for the prevention of varicella (chickenpox) has been demonstrated both in randomised controlled trials (RCTs) and in population-based immunisation programmes in countries such as the United States. However, many countries do not routinely immunise children against varicella, and exposures continue to occur. Although the disease is often mild, complications such as secondary bacterial infection, pneumonitis and encephalitis occur in about 1% of cases, usually lead… Show more

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Cited by 23 publications
(23 citation statements)
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“…Microbiology laboratory in mother-child VZV infection the wild-type virus, and there also the possibility of their recombination [5,30,221,234,235] . The vaccine may also be useful in preventing varicella if administered within 3-5 d of exposure to infection due to contact, even if not entirely prevents it [5,[236][237][238] . However, as it is a live attenuated vaccine, it is not recommended for pregnant women exposed to infection [19] .…”
Section: Prevention and Treatmentmentioning
confidence: 99%
“…Microbiology laboratory in mother-child VZV infection the wild-type virus, and there also the possibility of their recombination [5,30,221,234,235] . The vaccine may also be useful in preventing varicella if administered within 3-5 d of exposure to infection due to contact, even if not entirely prevents it [5,[236][237][238] . However, as it is a live attenuated vaccine, it is not recommended for pregnant women exposed to infection [19] .…”
Section: Prevention and Treatmentmentioning
confidence: 99%
“…Para el cálculo se utilizó la información aportada por la revisión sistemática realizada por la Colaboración Cochrane (2008), siendo la incidencia de varicela en el grupo que recibió la vacuna hasta cinco días post exposición 18%, y en el grupo que no recibió vacuna post exposición 78% 3 . Para una confianza de 95%, potencia 80% y relación expuesto/no-expuesto de 1/1, el tamaño de muestra estimado fue 26 pacientes totales (13 por grupo).…”
Section: Cálculo De Tamaño De Muestra Y Análisis Estadísticounclassified
“…sin historia de enfermedad ni vacunación) se expone a un caso de varicela, la tasa de ataque secundario fluctúa entre 78 y 92%. Dentro de un hogar los casos secundarios suelen ser más graves, hecho que podría estar relacionado con una mayor carga de virus infectante al momento del contagio 1,3 . Desde mediados de 1980 se dispone de la vacuna antivaricela (VAV).…”
Section: Introductionunclassified
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