Table 2. Temporal and spatial distribution of vector activity and infection in Kedougou, 1999a.
Species |
Nos. and ratesa |
Mosquitos captured in forest gallery |
Ngari |
Silling |
Bandafassi |
Kénioto |
||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
June | Oct | Nov | June | Oct | Nov | June | Oct | Nov | June | Oct | Nov | Nov | ||
Aedes furcifer male |
n |
1 |
– |
8 |
– |
1 |
7 |
1 |
– |
– |
– |
– |
3 |
2 |
Ae. furcifer female |
n |
1,053 |
1,586 |
1,204 |
2 |
315 |
110 |
37 |
33 |
23 |
21 |
66 |
50 |
18 |
|
BR |
3.25 |
5.87 |
3.65 |
0.16 |
8.75 |
3.66 |
2.05 |
2.5 |
1.27 |
1.75 |
5.5 |
4.17 |
1 |
|
TIR |
– |
0.51 |
2.99 |
– |
– |
2.85 |
– |
3.13 |
– |
– |
16.12 |
– |
5.55 |
|
EIR |
– |
0.08 |
0.32 |
– |
– |
0.31 |
– |
0.23 |
– |
– |
2.67 |
– |
0.65 |
Ae. luteocephalus female |
n |
1,063 |
682 |
390 |
– |
|
2 |
1 |
– |
|
– |
|
– |
- |
|
BR |
3.28 |
2.52 |
1.18 |
– |
– |
0.07 |
0.05 |
– |
|
– |
– |
– |
- |
|
TIR |
- |
1.45 |
3.09 |
– |
– |
– |
– |
|
– |
– |
– |
– |
- |
|
EIR |
– |
0.11 |
0.11 |
– |
– |
|
|
– |
– |
– |
|
– |
- |
Ae. aegypti female |
n |
45 |
5 |
15 |
5 |
1 |
– |
4 |
– |
– |
1 |
– |
– |
- |
|
BR |
0.13 |
0.45 |
0.04 |
0.42 |
0.03 |
– |
0.22 |
|
|
0.08 |
– |
– |
- |
|
TIR |
– |
– |
17 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
- |
|
EIR |
– |
– |
0.02 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
- |
Ae. taylori male |
n |
21 |
2 |
32 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
- |
Ae. taylori female |
n |
358 |
122 |
543 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
- |
|
BR |
1.1 |
0.45 |
1.64 |
– |
– |
– |
– |
– |
|
– |
|
– |
- |
|
TIR |
- |
0.92 |
2.63 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
- |
EIR | - | 0.01 | 0.13 | – | – | – | – | – | – | – | – | – | - |
a n, number of specimens captured; BR, biting rate (number of mosquitoes captured per human per hour); Oct, October; Nov, November; TIR, true infection rate (estimated number of positive mosquitoes per 100 mosquitoes tested according to Chiang and Reeves [18] and Walter et al. [19]); EIR, entomologic inoculation rate (number of infected mosquito bites per human per evening); –, no data obtained.