<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Teyssou, R.</style></author><author><style face="normal" font="default" size="100%">Muros-Le Rouzic, E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Meningitis epidemics in Africa: a brief overview.</style></title><secondary-title><style face="normal" font="default" size="100%">Vaccine</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Vaccine</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Africa</style></keyword><keyword><style  face="normal" font="default" size="100%">Disease Outbreaks</style></keyword><keyword><style  face="normal" font="default" size="100%">Geography</style></keyword><keyword><style  face="normal" font="default" size="100%">Humans</style></keyword><keyword><style  face="normal" font="default" size="100%">Meningitis, Meningococcal</style></keyword><keyword><style  face="normal" font="default" size="100%">Meningococcal Vaccines</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">09/2007</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">25 Suppl 1</style></volume><pages><style face="normal" font="default" size="100%">A3-7</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Every year, meningococcal meningitis causes thousands of deaths within the meningitis belt in sub-Saharan African countries. Large epidemic waves occur with a periodicity of 5-12 years. The waves do correspond to molecular changes in the expression of capsular or subcapsular antigens, which allow the bug to spread in susceptible populations. Serogroup A remains the major killer, even if in 2002, serogroup W135 ST-11 emerged in Burkina Faso, causing an important epidemic. However, the surveillance in the following years has showed a decrease in the W135 incidence and a clear predominance of serogroup A. Moreover, a new serogroup A strain belonging to ST-2859 seems to emerge and does represent a new threat for the coming seasons. In a vaccine perspective, and especially in the context of the development of an A conjugate vaccine; it is the key to strengthen the surveillance systems and to include molecular epidemiology as a tool for monitoring the molecular evolution of Neisseria meningitidis in Africa.&lt;/p&gt;
</style></abstract><custom1><style face="normal" font="default" size="100%">&lt;p&gt;http://www.ncbi.nlm.nih.gov/pubmed/17643560?dopt=Abstract&lt;/p&gt;
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