Table 3. Percentage of host seeking mosquitoes of each of the five vector species that Magude residents were exposed to in each of the five environments where humans and vectors have the opportunity to interact.
These environments are i) outdoors before going indoors, ii) indoors before going to bed, iii) indoors while in bed, iv) indoors after getting up, and v) outdoors after leaving the house again. Percentages are given for the low and high transmission seasons separately, and for the observed levels of bednet use, or assuming a hypothetical scenario in which all residents used a net when in bed.
| Low transmission season | High transmission season | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Outdoors evening | Indoors before going to bed | Indoors while in bed | Indoors after getting up | Outdoors morning | Outdoors evening | Indoors before going to bed | Indoors while in bed | Indoors after getting up | Outdoors morning | ||
| % of host-seeking mosquitoes at observed levels of bednet use | |||||||||||
|
An. arabiensis (n = 236) |
5.6% (0.7–22.8) | 30.3% (15.3–50.4) | 63%% (43–79.6) | 1.0% (0,16.3) | 0.1% (0–15) |
An. arabiensis (n = 515) |
3.4% (0.8–11.4) | 21.6% (13.2–33.1) | 73.4% (61.5–82.7) | 1.5% (0.1–8.6) | 0.1% (0–6.4) |
|
An. merus (n = 14) |
0.0% (0–82.5) | 25% (0–91.2) | 75.0% (8.8–100) | 0.0% (0–82.5) | 0.% (0–82.5) |
An. merus (n = 21) |
0.0% (0–51.6) | 9.7% (0–60.4) | 85.3% (35.4–99.6) | 5.1% (0–56.4) | 0.0 (0–51.6) |
|
An. funestus s.s (n = 22) |
40.1% (6.2–85.2) | 19.8% (0.4–75.5) | 39.2% (5.6–85.2) | 0.9% (0–62) | 0.0% (0–61.3) |
An. funestus s.s (n = 8) |
63.4% (12.7–96.7) | 2.2% (0–69.8) | 33.3% (1.9–87.1) | 1.2% (0–69.1) | 0.0% (0–68.3) |
|
An. parensis (n = 32) |
49.5% (20.7–78.6) | 17.7% (1.9,58.5) | 32.1% (7.5–70.3) | 0.6% (0–41.3) | 0.0% (0–40.6) |
An. parensis (n = 1) |
0.0% (0–99.5) | 93.1 (0.5–100) | 6.9% (0–99.5) | 0.0% (0–99.5%) | 0.0 (0–99.5) |
|
An. squamosus (n = 13) |
100% (23.1–100) | 0.0% (0–76.9) | 0.0% (0–76.9) | 0.0% (0–76.9) | 0.0% (0–76.9) |
An. squamosus (n = 66) |
29.4% (8.6–62.1) | 20.9% (4.4–54.3) | 46.3% (19.6–75.2) | 1.2% (0–33.1) | 2.2 (0–34.3) |
| Species combined | 21.1% (10.9–36.4 | 25.4% (12–21) | 52.7% (37.3–67.6) | 0.8% (0–11.2) | 0.1% (0–10.1) | Species combined | 8.4% (3.9–16.5) | 20.3% (12.9–30.1) | 69.4% (58.8–78.3 | 1.6% (0.2–7.6) | 0.3% (0–5.5) |
| % of host-seeking mosquitoes assuming all residents used the net | |||||||||||
|
An. arabiensis (n = 236) |
10.3% (1.3–37.4) | 55.1% (29.4–78.6) | 32.6% (12.8,60.1) | 1.8% (0–27) | 0.3% (0–24.9) |
An. arabiensis (n = 515) |
6.0% (1.3,19.2) | 37.9% (23.8–54.3) | 53.3% (37.4,68.6 | 2.6% (0.2,14.5) | 0.1% (0–19.7) |
|
An. merus (nl = 14) |
0% (0–95.3) | 54.1% (4.7–96.6) | 49.5% (3.4–95.3) | 0.0% (0–95.3) | 0.0% (0–95.3) |
An. merus (n = 21) |
0% (0–72.5) | 19.5% (0–83.3) | 70.2% (12.1–99.3) | 10.2% (0–78.5) | 0.0% (0–72.5) |
|
An. funestus s.s (n = 22) |
55.8% (12–92.5) | 27.6% (0.6–86.1) | 15.4% (0–80.1) | 1.3% (0–71.9) | 0.0% (0–71.1) |
An. funestus s.s (n = 8) |
78.9% (14.6–100) | 2.7% (0–76.1) | 17.0% (0–83.5) | 1.4% (0–75.4) | 0.0% (0–74.6) |
|
An. parensis (n = 32) |
64.3% (22.7–92.9) | 23.0% (2.5–68.3) | 11.9 (0.2–59.2) | 0.7% (0–40.9) | 0.8% (0–48.8) |
An. parensis (n = 1) |
0.0 (0–99.5) | 95.7% (0.5–100) | 4.3% (0–99.5) | 0.0% (0–99.5) | 0.0% (0–99.5) |
|
An. squamosus (n = 13) |
100% (23.1–100) | 0.0% (0–76.9) | 0.0% (0–76.9) | 0.8% (0–48.8) | 0.0% (0–76.9) |
An. squamosus (n = 66) |
40.2% (12–75.6) | 28.5% (6.1–66.7) | 26.0% (5.3–65.1) | 1.7% (0–42.7) | 3.0% (0–42.7) |
| Species combined | 33.8 (17.7–54.2) | 40.7% (23.2–60.7) | 24.0% (10.7–44.4) | 0.0% (0–76.9) | 0.2% (0–15.4) | Species combined | 14.1% (6.7–26.8) | 34.1% (22.2–48.2) | 48.4% (34.9-,62.1) | 2.8% (0.3–12.4 | 0.5% (0–9) |