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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*Comments to Author 
Author affiliations: *Institut de Médecine Tropicale du Service de Santé des Armées, Marseille, France; †Centre Pasteur du Cameroun, Yaoundé, Cameroon; ‡Centre Médico Social, Yaoundé, Cameroon; §Hôpital d'Instruction des Armées Begin, Clamart, France; ¶Institut de Recherche pour le Développement, Yaoundé, Cameroon;

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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
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.

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