Table I.
Results of xenodiagnosis with G. m. submorsitans fed on cows infected with T. congolense at different parasitaemia.
| Blood parasitaemia | 2 Tryp 1/field | 5 Tryp/40 fields | 1 Tryp/80 fields | 1 Tryp/120 fields | 1 Tryp/160 fields | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| DPI 2 flies | D2 | D5 | D2 | D5 | D2 | D5 | D2 | D5 | D2 | D5 |
| NDF3 | 19 | 18 | 20 | 17 | 18 | 18 | 20 | 20 | 20 | 19 |
| NDM 4 | 19 | 18 | 20 | 20 | 15 | 16 | 20 | 19 | 18 | 18 |
| NPF 5 | 16 | 1 | 19 | 1 | 10 | 0 | 0 | 0 | 5 | 0 |
| NPM 6 | 14 | 0 | 11 | 1 | 12 | 1 | 0 | 0 | 3 | 0 |
| % PF 7 | 84.2 | 5.6 | 95.0 | 5.9 | 55.6 | 0.0 | 0.0 | 0.0 | 25.0 | 0.0 |
| % PM 8 | 73.7 | 0.0 | 55.0 | 5.0 | 80.0 | 6.3 | 0.0 | 0.0 | 16.6 | 0.0 |
1
Tryp: trypanosome
2
DPI: days post infective meal
3
NDF : number of dissected female
4
NDM: number of dissected males
5
NPF: number of positive females
6
NPM: number of positive males
7
PF: positive females
8
PM: positive males.