[The contribution of biology laboratories to keep immunization recommendations up to date: the example of the Centre Pasteur of Cameroon in the fight against meningococcal meningitis in North-Cameroon].

The Centre Pasteur of Cameroon, Annex of Garoua, studied since 2007 méningococcus of meningitidis in the North of Cameroon. The serogroup A méningococcus completely seem to have disappeared with the profit from the serogroup W135 méningococcus. Current measurements of answers to an epidemic, based between others on reactive vaccination will have to take into account these new data to remain effective.

Serogroup W135 meningococcal meningitis, Northern Cameroon, 2007-2008.

We analyzed results of recent microbiologic surveillance of meningitis in northern Cameroon. During the 2007 and 2008 meningitis seasons, all 57 identified meningococcal isolates were serogroup W135. This situation might indicate that the area is experiencing a period between epidemic waves due to 2 different clones of serogroup A meningococci.