Table 3 Sporozoite rate (SR) of An. gambiae s.l. in treated and control communes in Alibori and Donga departments in 2019, 2020 and 2021
Location | Insecticide (Years) | Period | Department of Alibori | Department of Donga | ||||
|---|---|---|---|---|---|---|---|---|
Control Commune (Bembèrèkè) | Communes under IRS (Kandi + Gogounou) | P | Control Commune (Bassila) | Communes under IRS (Djougou + Copargo) | P | |||
SR % (A/B) | SR % (A/B) | SR % (A/B) | SR % (A/B) | |||||
Indoors | PM 300 CS (2019) | Before IRS | 5.9 (3/51) | 0.0 (0/120) | 0.041 | 14.3 (5/35) | 2.2 (1/45) | 0.109 |
After IRS | 1.7 (17/1002) | 0.0 (0/330) | 0.036 | 7.0 (24/342) | 0.6 (2/349) | < 0.0001 | ||
Clo + Del (2020) | Before IRS | 0.0 (0/16) | 0.0 (0/97) | NA | 0.0 (0/13) | 2.3 (1/44) | 1 | |
After IRS | 1.2 (6/521) | 0.4 (2/573) | 0.230 | 3.0 (15/493) | 1.0 (8/831) | 0.010 | ||
Clo 50 WG (2021) | Before IRS | 0.0 (0/39) | 0.6 (2/318) | 1 | 2.1 (1/47) | 1.0 (1/100) | 1 | |
After IRS | 1.7 (17/989) | 1.5 (18/1177) | 0.860 | 5.0 (27/542) | 4.5 (61/1365) | 0.7186 | ||
Outdoors | PM 300 CS (2019) | Before IRS | 7.4 (2/27) | 0.7 (1/136) | 0.116 | 5.3 (1/19) | 5.9 (2/34) | 1 |
After IRS | 0.9 (7/821) | 0.9 (5/538) | 1 | 6.4 (16/249) | 0.4 (2/474) | < 0.0001 | ||
Clo + Del (2020) | Before IRS | 0.0 (0/13) | 0.0 (0/101) | NA | 0.0 (0/24) | 2.7 (1/37) | 1 | |
After IRS | 1.5 (5/332) | 0.6 (3/487) | 0.363 | 0.8 (6/748) | 0.6 (6/1042) | 0.776 | ||
Clo 50 WG (2021) | Before IRS | 0.0 (0/30) | 0.5 (1/215) | 1 | 4.8 (2/42) | 3.9 (2/52) | 1 | |
After IRS | 1.1 (11/1038) | 1.0 (13/1280) | 1 | 5.0 (29/586) | 4.4 (68/1544) | 0.673 | ||