Table 5.
Blood meal indices of malaria vectors collected by different trapping methods in western Kenya
| Species | Blood meal index | Outdoors | Indoors | Total | |||||
|---|---|---|---|---|---|---|---|---|---|
| Pit shelter | Sticky pot | Clay pot | Light trap | Exit trap | Prokopack | Light trap | |||
| An. arabiensis | Number tested | 298 | 66 | 47 | 59 | 30 | 100 | 122 | 722 |
| HBI | 0.7 | 1.5 | 0 | 3.4 | 3.3 | 1.0 | 8.2 | 2.2 | |
| BBI | 85.6 | 84.8 | 83 | 50.8 | 73.3 | 68.0 | 62.3 | 75.7 | |
| GBI | 1.3 | 1.5 | 2.1 | 1.7 | 0 | 7.0 | 4.1 | 2.6 | |
| DBI | 3.4 | 3.1 | 2.1 | 1.7 | 0 | 2.0 | 3.3 | 2.8 | |
| CBI | 0.7 | 0 | 0 | 0 | 0 | 6.0 | 1.6 | 1.4 | |
| Unknown | 10.1 | 10.6 | 12.8 | 42.4 | 23.3 | 18.0 | 23.8 | 17.0 | |
| An. gambiae (s.s.) | Number tested | 13 | 4 | 3 | 10 | 14 | 16 | 10 | 70 |
| HBI | 23.1 | 25 | 33.3 | 20 | 42.9 | 75.0 | 70 | 45.7 | |
| BBI | 46.2 | 50 | 66.7 | 40 | 14.3 | 25.0 | 0 | 28.6 | |
| GBI | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| DBI | 7.7 | 0 | 0 | 0 | 0 | 6.3 | 0 | 2.9 | |
| CBI | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Unknown | 23.1 | 25 | 0 | 40 | 42.9 | 0 | 30 | 24.3 | |
| An. funestus | Number tested | 13 | 10 | 3 | 6 | 7 | 56 | 24 | 119 |
| HBI | 46.2 | 50 | 33.3 | 50 | 57.1 | 62.5 | 62.5 | 58.0 | |
| BBI | 38.5 | 50 | 66.7 | 33.3 | 14.3 | 19.6 | 8.3 | 23.5 | |
| GBI | 0 | 0 | 0 | 0 | 0 | 1.8 | 4.2 | 1.7 | |
| DBI | 7.7 | 0 | 0 | 0 | 0 | 1.8 | 4.2 | 2.5 | |
| CBI | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Unknown | 7.7 | 0 | 0 | 16.7 | 28.6 | 17.9 | 20.8 | 16.0 | |
Note: HBI was calculated as the proportion (%) of mosquitoes positive for human (including mixed blood meals) out of the total number of mosquitoes tested. Blood meal indices of other hosts were determined in a similar way
Abbreviations: HBI, human blood index; BBI, bovine blood index; GBI, goat blood index; DBI, dog blood index; CBI, chicken blood index