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. 2021 Apr 27;223(Suppl 2):S155–S170. doi: 10.1093/infdis/jiaa774

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.