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Volume 8, Number 3—March 2002

Dispatch

Recent Increase in Meningitis Caused by Neisseria meningitidis Serogroups A and W135, Yaoundé, Cameroon

Marie-Christine Fonkoua*, Muhamed-Kheir Taha†, Pierre Nicolas‡, Patrick Cunin*, Jean-Michel Alonso†, Raymond Bercion*, Jeanne Musi*, and Paul M.V. Martin*Comments to Author 
Author affiliations: *Centre Pasteur du Cameroun, Yaoundé, Cameroun; †Institut Pasteur, Paris, France; ‡Centre Collaborateur de l’OMS, Institut de Médecine Tropicale du Service de Santé des Armées, Marseille, France;

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Table

Isolation of Neisseria meningitidis from meningitis cases at Yaoundé, Cameroon, 1991–2001

Year No. of CSF samples No. (%) of cases of bacterial meningitis No. (%) of cases of meningococcal meningitis No. of strains of each serogroup
1991-1992 1,246 131(10.5) 8(6.1) 6 A; 2 C
1992-1993 1,049 105(10) 11(10.5) 11 A
1993-1994 961 88(9.2) 9(10.2) 8 A; 1 B
1994-1995 722 69(9.6) 6(8.7) 2 A; 4B
1995-1996 998 70(7) 4(5.7) 1A; 1B; 1C; 1NT*
1996-1997 1,255 97(7.7) 2(2.1) 2C
1997-1998 1,282 92(7.2) 6(6.5) 4A; 1C; 1NT
1998-1999 1,505 116(7.7) 8(6.9) 6A; 1B; 1W135
1999-2000        1,812 120(6.6) 23(19.2) 17A; 2B; 4W135
2000-2001        1,612 81(5) 17(21) 13A; 4W135
Total        1,2442 969 (7.8) 94 (9.7) 68A; 9B; 6C;9W135; 2NT

NT: not serogrouped; CSF: cerebrospinal fluid.

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