Matches in SemOpenAlex for { <https://semopenalex.org/work/W2117687591> ?p ?o ?g. }
- W2117687591 abstract "The prevention of varicella (chickenpox) using live attenuated varicella vaccines has been demonstrated both in randomised controlled trials (RCTs) and in population-based immunisation programmes in countries such as the United States and Australia. 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 leading to hospitalisation. The use of varicella vaccine in persons who have recently been exposed to the varicella zoster virus has been studied as a form of post-exposure prophylaxis (PEP).To assess the efficacy and safety of vaccines for use as PEP for the prevention of varicella in children and adults.We searched CENTRAL (2014, Issue 1), MEDLINE (1966 to March week 1, 2014), EMBASE (January 1990 to March 2014) and LILACS (1982 to March 2014). We searched for unpublished trials registered on the clinicaltrials.gov and WHO ICTRP websites.RCTs and quasi-RCTs of varicella vaccine for PEP compared with placebo or no intervention. The outcome measures were efficacy in prevention of clinical cases and/or laboratory-confirmed clinical cases and adverse events following vaccination.Two review authors independently extracted and analysed data using Review Manager software.We identified three trials involving 110 healthy children who were siblings of household contacts. The included trials varied in study quality, vaccine used, length of follow-up and outcomes measured and, as such, were not suitable for meta-analysis. We identified high or unclear risk of bias in two of the three included studies. Overall, 13 out of 56 vaccine recipients (23%) developed varicella compared with 42 out of 54 placebo (or no vaccine) recipients (78%). Of the vaccine recipients who developed varicella, the majority only had mild disease (with fewer than 50 skin lesions). In the three trials, most participants received PEP within three days following exposure; too few participants were vaccinated four to five days post-exposure to ascertain the efficacy of vaccine given more than three days after exposure. No included trial reported on adverse events following immunisation.These small trials suggest varicella vaccine administered within three days to children following household contact with a varicella case reduces infection rates and severity of cases. We identified no RCTs for adolescents or adults. Safety was not adequately addressed." @default.
- W2117687591 created "2016-06-24" @default.
- W2117687591 creator A5005901241 @default.
- W2117687591 creator A5044012767 @default.
- W2117687591 creator A5090422411 @default.
- W2117687591 date "2014-06-23" @default.
- W2117687591 modified "2023-10-15" @default.
- W2117687591 title "Vaccines for post-exposure prophylaxis against varicella (chickenpox) in children and adults" @default.
- W2117687591 cites W119920208 @default.
- W2117687591 cites W1500989809 @default.
- W2117687591 cites W1502250206 @default.
- W2117687591 cites W1507024592 @default.
- W2117687591 cites W151484947 @default.
- W2117687591 cites W1525608366 @default.
- W2117687591 cites W1538125405 @default.
- W2117687591 cites W1577914260 @default.
- W2117687591 cites W1578129360 @default.
- W2117687591 cites W1588308007 @default.
- W2117687591 cites W1599707386 @default.
- W2117687591 cites W1603398248 @default.
- W2117687591 cites W1633809230 @default.
- W2117687591 cites W164385564 @default.
- W2117687591 cites W1656947077 @default.
- W2117687591 cites W1693650742 @default.
- W2117687591 cites W1904175203 @default.
- W2117687591 cites W1918911486 @default.
- W2117687591 cites W1964855059 @default.
- W2117687591 cites W1968036257 @default.
- W2117687591 cites W1968296648 @default.
- W2117687591 cites W1969092791 @default.
- W2117687591 cites W1969295484 @default.
- W2117687591 cites W1969748301 @default.
- W2117687591 cites W1969971241 @default.
- W2117687591 cites W1971485314 @default.
- W2117687591 cites W1971533013 @default.
- W2117687591 cites W1972643680 @default.
- W2117687591 cites W1972855962 @default.
- W2117687591 cites W1973193832 @default.
- W2117687591 cites W1978481580 @default.
- W2117687591 cites W1978833992 @default.
- W2117687591 cites W1980121967 @default.
- W2117687591 cites W1980231683 @default.
- W2117687591 cites W1980492236 @default.
- W2117687591 cites W1980630167 @default.
- W2117687591 cites W1980863010 @default.
- W2117687591 cites W1983471051 @default.
- W2117687591 cites W1984149448 @default.
- W2117687591 cites W1984262997 @default.
- W2117687591 cites W1984533149 @default.
- W2117687591 cites W1984568096 @default.
- W2117687591 cites W1984793984 @default.
- W2117687591 cites W1985283204 @default.
- W2117687591 cites W1985406046 @default.
- W2117687591 cites W1987333751 @default.
- W2117687591 cites W1989490043 @default.
- W2117687591 cites W1992354372 @default.
- W2117687591 cites W1992988169 @default.
- W2117687591 cites W1993113905 @default.
- W2117687591 cites W1994051530 @default.
- W2117687591 cites W1994900213 @default.
- W2117687591 cites W1996346577 @default.
- W2117687591 cites W1996728964 @default.
- W2117687591 cites W1996787074 @default.
- W2117687591 cites W1996991575 @default.
- W2117687591 cites W1997131568 @default.
- W2117687591 cites W1997241297 @default.
- W2117687591 cites W1997628339 @default.
- W2117687591 cites W1997709264 @default.
- W2117687591 cites W2000206730 @default.
- W2117687591 cites W2002733674 @default.
- W2117687591 cites W2005839592 @default.
- W2117687591 cites W2005853337 @default.
- W2117687591 cites W2008405166 @default.
- W2117687591 cites W2008565260 @default.
- W2117687591 cites W2008979515 @default.
- W2117687591 cites W2009219117 @default.
- W2117687591 cites W2009451638 @default.
- W2117687591 cites W2010003182 @default.
- W2117687591 cites W2010138215 @default.
- W2117687591 cites W2010314525 @default.
- W2117687591 cites W2010706763 @default.
- W2117687591 cites W2010778590 @default.
- W2117687591 cites W2011059197 @default.
- W2117687591 cites W2011918489 @default.
- W2117687591 cites W2012563560 @default.
- W2117687591 cites W2012945920 @default.
- W2117687591 cites W2016186021 @default.
- W2117687591 cites W2016566832 @default.
- W2117687591 cites W2016881992 @default.
- W2117687591 cites W2017451726 @default.
- W2117687591 cites W2020761357 @default.
- W2117687591 cites W2021137633 @default.
- W2117687591 cites W2021139444 @default.
- W2117687591 cites W2023942650 @default.
- W2117687591 cites W2024305801 @default.
- W2117687591 cites W2025397789 @default.
- W2117687591 cites W2026938252 @default.
- W2117687591 cites W2027758474 @default.
- W2117687591 cites W2028071310 @default.
- W2117687591 cites W2031471010 @default.