Meningococcal carriage in the African meningitis belt.


Type
Article
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Authors
MenAfriCar Consortium 
Abstract

A meningococcal serogroup A polysaccharide/tetanus toxoid conjugate vaccine (PsA-TT) (MenAfriVac(™) ) is being deployed in countries of the African meningitis belt. Experience with other polysaccharide/protein conjugate vaccines has shown that an important part of their success has been their ability to prevent the acquisition of pharyngeal carriage and hence to stop transmission and induce herd immunity. If PsA-TT is to achieve the goal of preventing epidemics, it must be able to prevent the acquisition of pharyngeal carriage as well as invasive meningococcal disease and whether PsA-TT can prevent pharyngeal carriage needs to be determined. To address this issue, a consortium (the African Meningococcal Carriage (MenAfriCar) consortium) was established in 2009 to investigate the pattern of meningococcal carriage in countries of the African meningitis belt prior to and after the introduction of PsA-TT. This article describes how the consortium was established, its objectives and the standardised field and laboratory methods that were used to achieve these objectives. The experience of the MenAfriCar consortium will help in planning future studies on the epidemiology of meningococcal carriage in countries of the African meningitis belt and elsewhere.

Description
Keywords
Africa, MenAfriCar, Neisseria meningitidis, meningococcal carriage, meningococcal vaccines, meningococcus, Adolescent, Adult, Africa, Carrier State, Child, Child, Preschool, Cross-Sectional Studies, Enzyme-Linked Immunosorbent Assay, Epidemics, Humans, Immunization Programs, Infant, International Cooperation, Meningitis, Meningococcal, Meningococcal Vaccines, Neisseria meningitidis, Serogroup A, Pharynx, Pilot Projects, Polymerase Chain Reaction, Program Evaluation, Specimen Handling, Vaccines, Conjugate, Young Adult
Journal Title
Trop Med Int Health
Conference Name
Journal ISSN
1360-2276
1365-3156
Volume Title
18
Publisher
Wiley