Table 4.
Entomological collections in the Huehuetenango focus (from December 2010 to April 2011).
| Month | Hours collected | Days collected | Simulium ochraceum | Simulium metallicum | ||
|---|---|---|---|---|---|---|
| Number captured | Biting rate per hour∗ | Biting density§ | Number captured | |||
| December | 224 | 7 | 1743 | 4.2 (3.5–5.1) | 1309 (1075–1581) | 1603 |
| January | 288 | 9 | 1230 | 2.5 (2.1–2.9) | 769 (650–903) | 911 |
| February | 256 | 8 | 603 | 1.5 (1.2–1.8) | 420 (347–500) | 1055 |
| March | 256 | 8 | 775 | 1.6 (1.3–2) | 501 (403–611) | 864 |
| April | 256 | 8 | 236 | 0.4 (0.3–0.6) | 130 (93–170) | 479 |
|
| ||||||
| Total | 1280 | 40 | 4587 | 1.8 (1.6–2) | 2693 (2454–2945) | 4912 |
*Geometric 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).