Volume 20, Number 6—June 2014
Dispatch
Timeliness of Yellow Fever Surveillance, Central African Republic
Antoine Rachas1, Emmanuel Nakouné, Julie Bouscaillou, Juliette Paireau, Benjamin Selekon, Dominique Senekian, Arnaud Fontanet, and Mirdad Kazanji
Table 1
Characteristics of 3,220 case-patients with suspected yellow fever, Central African Republic, 2007–2012*
| Characteristic | Suspected case-patients, n = 3,220 | Confirmed case-patients, n = 55 | Ruled out case-patients, n = 3,165 | p value |
|---|---|---|---|---|
| Age, y | ||||
| <14 | 1,017 (31.7) | 9 (16.4) | 1,008 (32.0) | NA |
| 15–24 | 882 (27.5) | 22 (40.0) | 860 (27.3) | NA |
| 25–34 | 673 (21.0) | 16 (29.1) | 657 (20.9) | NA |
| ≥35 | 633 (19.8) | 8 (14.6) | 625 (19.8) | 0.020 |
| Median (IQR) |
21 (10–30) |
23 (17–28) |
21 (10–31) |
0.32 |
| Sex | ||||
| M | 1,851 (57.5) | 35 (63.6) | 1,816 (57.4) | NA |
| F |
1,366 (42.5) |
20 (36.4) |
1,346 (42.6) |
0.36 |
| Onset during rainy season | ||||
| No | 1,446 (45.4) | 27 (50.0) | 1,419 (45.3) | NA |
| Yes |
1,738 (54.6) |
27 (50.0) |
1,711 (54.7) |
0.50 |
| Province of residence | ||||
| Bangui | 1,053 (32.7) | 11 (20.0) | 1,042 (32.9) | NA |
| Ombella M’Poko | 794 (24.7) | 30 (54.5) | 764 (24.1) | NA |
| Lobaye | 189 (5.9) | 5 (9.1) | 184 (5.8) | NA |
| Sangha Mbaéré | 20 (0.6) | 0 | 20 (0.6) | NA |
| Mambéré Kadéi | 43 (1.3) | 0 | 43 (1.4) | NA |
| Nana Mambéré | 40 (1.2) | 0 | 40 (1.3) | NA |
| Ouham Péndé | 178 (5.5) | 1 (1.8) | 177 (5.6) | NA |
| Ouham | 111 (3.5) | 0 | 111 (3.5) | NA |
| Nana Grigbizi | 71 (2.2) | 0 | 71 (2.2) | NA |
| Kemo | 88 (2.7) | 0 | 88 (2.8) | NA |
| Bamingui Bangoran | 23 (0.7) | 0 | 23 (0.7) | NA |
| Ouaka | 188 (5.8) | 1 (1.8) | 187 (5.9) | NA |
| Basse Kotto | 178 (5.3) | 4 (7.3) | 174 (5.5) | NA |
| Vakaga | 33 (1.0) | 0 | 33 (1.0) | NA |
| Haute Kotto | 114 (3.5) | 3 (5.5) | 111 (3.5) | NA |
| Mbomou | 78 (2.4) | 0 | 78 (2.5) | NA |
| Haut Mbomou |
19 (0.6) |
0 |
19 (0.6) |
NC |
| Vaccination against yellow fever | ||||
| Never | 2,301 (71.5) | 28 (50.9) | 2,273 (71.8) | NA |
| >10 y ago | 160 (5.0) | 3 (5.5) | 157 (5.0) | NA |
| ≤10 y ago | 705 (21.9) | 11 (20.0) | 694 (21.9) | NA |
| Unknown date | 54 (1.7) | 13 (23.6) | 41 (1.3) | <0.001 |
*Values are no. (%) except as indicated. NA, not applicable; IQR, interquartile range; NC, not computable.
1Current affiliation: European Hospital Georges Pompidou and Descartes University, Paris, France.
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