Volume 13, Number 5—May 2007
Dispatch
Chikungunya Virus, Cameroon, 2006
Christophe N. Peyrefitte*, Dominique Rousset†, Boris A.M. Pastorino*, Regis Pouillot†, Maël Bessaud*, Fabienne Tock*, Helene Mansaray‡, Olivier L. Merle*, Aurelie M. Pascual*, Christophe Paupy§, Aurelia Vessiere†, Patrice Imbert¶, Patrice Tchendjou†, Jean-Paul Durand*, Hugues J. Tolou*, and Marc Grandadam*
Table
Characteristics of patients with febrile acute denguelike syndrome, Cameroon, 2006*
| Patient no. | Sex/age | City | Symptom onset | Sampling date | Delay, days | IgM† | IgG† | PCR‡ |
|---|---|---|---|---|---|---|---|---|
| 1 | M/35 | Douala | 3 Apr | 7 Apr | 4 | Neg | Neg | Neg |
| 1 | M/35 | Douala | 3 Apr | 11 May | 21 | Pos CHIK | Pos CHIKV | Neg |
| 2§ | M/36 | Douala | 22 May | 23 May | 1 | Neg | Neg | Pos CHIK |
| 3 | F/54 | Yaoundé | 11 Jun | 12 Jun | 1 | Neg | Neg | Neg |
| 4 | F/49 | Yaoundé | 10 Jun | 13 Jun | 3 | Neg | Neg | Neg |
| 5 | F/42 | Yaoundé | 11 Jun | 12 Jun | 1 | Neg | Neg | Neg |
| 6 | F/41 | Yaoundé | 7 Jun | 7 Jun | 0 | Neg | Pos Flavi | Neg |
| 7 | M/38 | Yaoundé | 15 Jun | 19 Jun | 4 | Neg | Neg | Neg |
| 8 | M/30 | Yaoundé | 18 Aug | 19 Jun | 1 | Neg | Neg | Neg |
| 9 | M/21 | Yaoundé | 15 Jun | 19 Jun | 4 | Neg | Neg | Neg |
| 10 | F/32 | Yaoundé | 21 Jun | 22 Jun | 1 | Neg | Neg | Neg |
| 11 | F/22 | Yaoundé | 19 Jun | 26 Jun | 7 | Pos CHIKV | Neg | Neg |
| 12 | F/53 | Imported case | 20 Jun | 26 Jun | 6 | Pos CHIKV | Pos CHIK | Neg |
| 13 | M/42 | Yaoundé | 24 Jun | 27 Jun | 3 | Neg | Pos Flavi | Neg |
| 14 | F/42 | Yaoundé | 18 Jun | 28 Jun | 10 | Neg | Neg | Neg |
| 15 | F/27 | Yaoundé | 18 Jun | 29 Jun | 11 | Neg | Pos Flavi | Neg |
| 16 | F/43 | Yaoundé | 26 Jun | 30 Jun | 4 | Neg | Neg | Neg |
| 17 | M/31 | Yaoundé | 16 Jun | 30 Jun | 14 | Neg | Neg | Neg |
| 18 | F/37 | Yaoundé | 22 May | 30 Jun | 39 | Pos CHIK | Pos CHIK | Neg |
| 19 | F/45 | Yaoundé | 10 Jun | 30 Jun | 20 | Neg | Neg | Neg |
| 20 | M/45 | Yaoundé | 22 Jun | 30 Jun | 8 | Neg | Pos Flavi and CHIKV | Neg |
| 21 | M/1 | Yaoundé | 23 Jun | 30 Jun | 7 | Neg | Neg | Neg |
| 22 | F/9 | Yaoundé | 10 Jun | 30 Jun | 20 | Neg | Neg | Neg |
| 23 | M/4 | Yaoundé | 26 Jun | 30 Jun | 4 | Neg | Neg | Neg |
| 24 | M/54 | Yaoundé | 4 Jul | 6 Jul | 2 | Neg | Neg | Neg |
| 25 | F/45 | Yaoundé | 14 Jun | 5 Jul | 21 | Neg | Neg | Neg |
| 26 | M/48 | Yaoundé | 24 Jun | 6 Jul | 12 | Neg | Neg | Neg |
| 27 | M/20 | Yaoundé | 30 Jun | 1 Jul | 1 | Neg | Neg | Neg |
| 28 | M/37 | Yaoundé | 4 Jul | 11 Jul | 7 | Pos CHIK | Pos CHIKV | Neg |
| 29 | M/36 | Yaoundé | 9 Jul | 11 Jul | 2 | Neg | Neg | Neg |
| 30 | M/33 | Yaoundé | 28 Jun | 10 Jul | 12 | Neg | Neg | Neg |
| 31 | M/32 | Yaoundé | 10 Jul | 12 Jul | 2 | Neg | Neg | Pos DENV |
| 32 | F/38 | Yaoundé | 16 Jul | 17 Jul | 1 | Neg | Neg | Neg |
| 33 | M/45 | Yaoundé | 21 Jul | 26 Jul | 5 | Neg | Neg | Neg |
*IgM, immunoglobulin M; Neg, negative; Pos, positive; CHIKV, chikungunya virus; Flavi, flavivirus; DENV, dengue virus.
†CHIKV isolation successful.
‡DENV, West Nile virus, Wesselsbron virus, Rift Valley fever virus, Bunyamwera virus, and CHIKV antibodies tested.
§DENV, West Nile virus, CHIKV tested by real-time RT-PCR.
