Volume 26, Number 10—October 2020
Dispatch
Silent Circulation of Rift Valley Fever in Humans, Botswana, 2013–2014
Claire E. Sanderson, Ferran Jori, Naazneen Moolla, Janusz T. Paweska, Nesredin Oumer, and Kathleen A. Alexander
Table 1
Percent of Rift Valley fever virus IgG-positive human serum samples by sex and age group, Botswana*
| Age group | Age, y | Women |
Men |
Unknown |
|||||
|---|---|---|---|---|---|---|---|---|---|
| No. patients | No. IgG positive (%, 95% CI) | No. patients | No. IgG positive (%, 95% CI) | No. patients | No. IgG positive (%, 95% CI) | ||||
| Child | <12 | 15 | 0 (0, 0–20) | 17 | 0 (0, 0–18) | 2 | 0 (0, 0–66) | ||
| Adolescent | 13–19 | 57 | 1 (2, 0–9) | 9 | 0 (0, 0–30) | 1 | 0 (0, 0–79) | ||
| Young adult | 20–24 | 152 | 2 (1, 0–5) | 26 | 1 (4, 1–19) | 2 | 0 (0, 0–66) | ||
| Adult | 25–44 | 538 | 24 (4, 3–7) | 150 | 7 (5, 2–9) | 25 | 0 (0, 0–13) | ||
| Middle-aged | 45–64 | 78 | 7 (9, 4–17) | 45 | 4 (9, 4–21) | 4 | 1 (25, 5–70) | ||
| Aged | 65–79 | 5 | 1 (20, 4–62) | 10 | 5 (50, 24–76) | 1 | 0 (0, 0–79) | ||
| Elderly | >80 | 5 | 2 (40, 12–77) | 3 | 2 (67, 21–94) | 0 | NA | ||
| Unknown |
NA |
11 |
1 (9, 2–38) |
6 |
2 (33, 10–70) |
114 |
5 (4, 2–10) |
||
| Total |
861 |
38 (4, 3–6) |
266 |
21 (9, 6–14) |
149 |
6 (4, 2–9) |
|||
| *NA, not applicable | |||||||||
Page created: June 30, 2020
Page updated: September 17, 2020
Page reviewed: September 17, 2020
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