Table 2.
Malaria Transmission Intensity in Cameroon, Ethiopia, and Kenya
Anopheles Species |
Biting Locations | HBR (Bites/Person/Night) | Sporozoite Index, %a | EIR (Infective Bites/Person/Year) | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Cameroon | Ethiopia | Kenya | Cameroon | Ethiopia | Kenya | Cameroon | Ethiopia | Kenya | ||
An. gambiae s.l. |
Indoor | 5.22 | 3.13 | 0.17 | 0.05 [0.04–0.06] (1171) | 0.000 […] | 0 (11) | 95.28 | 0.00 | 0.00 |
Outdoor | 6.35 | 8.61 | 0.85 | 0.06 [0.05–0.08] (1004) | 0.005 [0.004–0.01] | 0.018 [0.0–0.1] (55) | 139.04 | 15.87 | 5.63 | |
Total | 5.78 | 5.87 | 0.508 | 0.06 [0.05–0.07] (2175) | 0.004 [0.002–0.005] | 0.015 [0.0–0.08] (66) | 126.69 | 7.93 | 2.815 | |
An. moucheti
|
Indoor | 10.72 | 0.00 | 0.00 | 0.008 [0.004–0.011] (2604) | NA | NA | 31.32 | NA | 0.00 |
Outdoor | 12.65 | 0.00 | 0.02 | 0.006 [0.0033–0.009] (2545) | NA | 0 (1) […] | 27.71 | NA | 0.00 | |
Total | 11.69 | 0.00 | 0.008 | 0.007 [0.005–0.009] (5149) | NA | 0 (1) […] | 29.86 | NA | 0.00 | |
An. funestus group |
Indoor | 0.00 | 0.00 | 1.86 | NA | NA | 0.04 [0.01–0.09] (121) | 0.00 | NA | 28.15 |
Outdoor | 0.00 | 0.00 | 1.71 | NA | NA | 0.03 [0.01–0.09] (111) | 0.00 | NA | 16.89 | |
Total | 0.00 | 0.00 | 1.785 | NA | NA | 0.03 [0.02–0.07] (232) | 0.00 | NA | 22.52 | |
Other species |
Indoor | 10.64 | 6.13 | 0.00 | 0.005 [0.003–0.008] (2765) | 0.000 […] | 0 (0) | 19.42 | 0.0 | 0.00 |
Outdoor | 13.47 | 26.57 | 0.26 | 0.007 [0.004–0.011] (2713) | 0.002 [0.0–0.01] | 0.058 [0.001–0.33] (17) | 34.42 | 15.9 | 5.63 | |
Total | 12.06 | 16.35 | 0.13 | 0.006 [0.004–0.008] (5478) | 0.001 [0.0–0.01] | 0.058 [0.001–0.33] (17) | 26.40 | 7.9 | 2.81 | |
All species |
Indoor | 26.59 | 9.26 | 2.03 | 0.014 [0.011–0.017] (6540) | 0.000 […] | 0.037 [0.01–0.08] (132) | 135.85 | 0.00 | 28.15 |
Outdoor | 32.47 | 35.17 | 2.83 | 0.016 [0.013–0.019] (6262) | 0.002 [0.001–0.01] | 0.027 [0.01–0.06] (184) | 189.64 | 31.74 | 28.15 | |
Total | 29.53 | 22.22 | 2.43 | 0.015 [0.013–0.017] (12 802) | 0.002 [0.001–0.01] | 0.03 [0.015–0.05] (316) | 161.67 | 15.87 | 28.15 |
Abbreviations: EIR, entomological inoculation rate; HBR, human biting rate; NA, not available; s.l., sensu lato.
aSporozoite Index shown as percent of plasmodium positive mosquitoes and number tested and compared by Fischers exact test.