Table 1 |
||||
|
Density, Sporozoite prevalence and Transmission index of specimens collected at sentinel sites in Bioko, 2004–2005 |
||||
| Pre spray |
Post spray 1 |
Post spray 2 |
Post spray 3 |
|
|
|
||||
| An. gambiae s.l. |
||||
| No. caught |
2389 |
7427 |
341 |
136 |
| No. analysed for species identification |
719 |
1017 |
230 |
77 |
| Proportion An. gambiae s.s. (%) |
82 |
97 |
88 |
90 |
| An. gambiae s.s. |
||||
| No. estimated |
1959 |
7204 |
300 |
122 |
| No. per trap per 100 nights |
23.9 |
25.5 |
1.9 |
1.7 |
| Sporozoite rate |
6.0(n = 586) |
1.4(n = 985) |
0(n = 203) |
0(n = 69) |
| Transmission index § |
1.4 |
0.36 |
0 |
0 |
| Transmission index relative to baseline |
1 |
0.26 |
0 |
0 |
| An. melas |
||||
| No. estimated |
430 |
223 |
41 |
14 |
| No. per trap per 100 nights |
5.3 |
0.8 |
0.3 |
0.2 |
| Sporozoite rate |
8.3(n = 133) |
3.1(n = 32) |
0(n = 27) |
0(n = 8) |
| Transmission index§ |
0.44 |
0.03 |
0 |
0 |
| Transmission index relative to baseline |
1 |
0.07 |
0 |
0 |
| An. funestus |
||||
| No. caught |
1920 |
874 |
10 |
3 |
| No. analysed for species identification |
372 |
215 |
1 |
0 |
| No. per trap per 100 nights |
23.5 |
3.1 |
0.06 |
0.04 |
| Sporozoite rate |
4.0(n = 372) |
2.3(n = 215 |
0(n = 1) |
* |
| Transmission index§ |
0.94 |
0.07 |
* |
* |
| Transmission index relative to baseline |
1 |
0.08 |
* |
* |
|
|
||||
|
* Not computed due to insufficient specimens § Number of infective mosquitoes per 100 trap nights |
||||
|
Sharp et al. Malaria Journal 2007 6:52 doi:10.1186/1475-2875-6-52 |
||||
