Research Article

Elimination of Onchocerca volvulus Transmission in the Huehuetenango Focus of Guatemala

Table 3

Entomological collections in the Huehuetenango focus (from November 2007 to April 2008).

MonthHours collectedDays collectedSimulium ochraceumSimulium metallicum
Number capturedBiting rate per hour*Biting density§Number captured

November572164116.7 (11.4–24.2)5019 (3432–7270)796
December1605274512.7 (10.8–15)3951 (3346–4655)2639
January252815584.5 (3.9–5.1)1381 (1194–1589)3020
February256810832.5 (2.1–3)726 (602–865)2025
March25289631.9 (1.6–2.4)600 (483–732)1753
April24382620.7 (0.5–0.8)203 (158–252)1240

Total12203982523.2 (2.9–3.5)5765 (5263–6300)11473

G e o m e t r i c mean of biting rate per hour (95% CI).
§Number of black fly bites per person per month (geometric mean biting rate per hour × 10 hours per day × number of days in a month) (95% CI).