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. 2009 Jul 28;8:171. doi: 10.1186/1475-2875-8-171

Table 1.

Mean daily human biting rate (HBR), circumsporozoite protein rates (CSP) and entomological inoculation rates (EIR – infective bites per person per months) of An. gambiae s.l., An. funestus s.l. and An. nili s.l. by permanent sites.

Dry period Rainy period
Permanent Sites An. gambiae s.l. An. funestus s.l. An. nili s.l. all vectors An. gambiae s.l. An. funestus s.l. An. nili s.l. all vectors
Bangolo PNC: 13/28

Total collected 7 0 0 7 265 38 3 306
HBR 0.5 - - 0.5 9.5 1.4 0.1 10.9
Tested for CSP 7 - - 7 258 37 3 298
CSP rate [95% C.I.] 0% [0–42.0] - - 0% [0–42.0] 2.7% [1.1–5.5] 2.7% [0.1–14.2] 0% [0–70.8] 2.7% [1.2–5.2]
EIR 0 - - 0 7.8 1.1 0 8.9
Guezon PNC: 20/28
Total collected 30 122 0 152 162 348 2 512
HBR 1.5 6.1 - 7.6 5.8 12.4 0.1 18.3
Tested for CSP 30 95 - 117 161 346 2 509
CSP rate [95% C.I.] 0% [0–15.4] 2.1% [0.3–7.4] - 1.7% [0.2–6.0] 3.7% [1.4–7.9] 5.5% [3.3–8.4] 0% [0–84.2] 4.9% [3.2–7.2]
EIR 0 3.9 - 3.9 6.6 20.7 0 27.3
Kahin PNC: 7/23
Total collected 185 44 394 623 375 131 386 892
HBR 26.4 6.3 56.3 89 16.3 5.7 16.8 38.8
Tested for CSP 100 44 197 293 306 117 303 726
CSP rate [95% C.I.] 3.0% [0.3–9.0] 11.4% [3.8–24.6] 3.5% [1.4–7.2] 3.7% [1.9–6.6] 4.2% [2.3–7.2] 2.6% [0.5–7.3] 1.0% [0.2–2.9] 2.6% [1.6–4.1]
EIR 23.8 21.5 60.8 102.7 21.1 4.4 5.1 30.6
Logouale PNC: 6/12
Total collected 565 10 23 598 1531 43 34 1608
HBR 94.2 1.7 3.8 99.7 127.6 3.6 2.8 134
Tested for CSP 99 10 23 132 749 40 34 823
CSP rate [95% C.I.] 3% [0.6–8.6] 0% [0–30.9] 0% [0–14.8] 2.3% [0.5–6.5] 2.9% [1.9–4.4] 0% [0–8.8] 0% [0–10.3] 2.7% [1.7–4]
EIR 86.0 0 0 86.0 114.1 0 0 114.1

The dry period goes from February to March 2004 and the rainy period goes from April to June 2004.

HBR: Mean daily human biting rate

CSP: circumsporozoite protein rates

EIR: entomological inoculation rates – infective bites per person per month

PNC: Total Person-night of capture in dry season/rainy season

95% C.I.: 95% confidence interval