2012
DOI: 10.1093/cid/cis892
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Impact of the Serogroup A Meningococcal Conjugate Vaccine, MenAfriVac, on Carriage and Herd Immunity

Abstract: The disappearance of NmA carriage among both vaccinated and unvaccinated populations is consistent with a vaccine-induced herd immunity effect.

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Cited by 186 publications
(178 citation statements)
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“…Because the development of a new vaccine through to licensure takes many years, this leaves Africa vulnerable to new epidemics of MenX meningitis at a time when the epidemiology of meningococcal meningitis on the continent is changing rapidly (13). Glycoconjugates are among the safest and most efficacious vaccines developed during the last 30 y (46).…”
Section: Discussionmentioning
confidence: 99%
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“…Because the development of a new vaccine through to licensure takes many years, this leaves Africa vulnerable to new epidemics of MenX meningitis at a time when the epidemiology of meningococcal meningitis on the continent is changing rapidly (13). Glycoconjugates are among the safest and most efficacious vaccines developed during the last 30 y (46).…”
Section: Discussionmentioning
confidence: 99%
“…Additionally, as documented for group C, meningococcal conjugate vaccines can reduce carriage of N. meningitidis in the nasopharynx, decreasing transmission (24), whereas PS vaccines have not been shown to provide substantial herd immunity (25). The impact of vaccination with the MenAfriVac conjugate vaccine in Burkina Faso on carriage and herd immunity has been recently reported (13).…”
Section: Significancementioning
confidence: 99%
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“…As large numbers of samples and data were generated, wellorganized data management processes were required. 34 Careful interpretation of carriage study data is necessary as the carriage situation in a population will be temporally and geographically dynamic and can change rapidly.…”
Section: Conducting Carriage Studiesmentioning
confidence: 99%
“…The vaccine gives direct protection and reduces carriage. 34 The WHO MenA strategy induced herd protection through mass vaccination campaigns, targeting 1e29 year olds. More recently, MenAfriVac Ò MenA conjugate vaccine was introduced into the routine immunization schedule (for infants aged 9e18 months), thus protecting birth cohorts.…”
Section: Menafrivacmentioning
confidence: 99%