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*
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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