Table 3.

Infection indexes of G. p. gambiensis males and females infected with T. b. brucei BE8P2P2

DPI	Sex	n	n′	n″	p	m	VC
D3	Male	15	3	0	0.200	0	0
	Female	15	5	0	0.333	0	0
	Total	30	8	0	0.266	0	0
D5	Male	15	1	0	0.066	0	0
	Female	15	2	0	0.133	0	0
	Total	30	3	0	0.100	0	0
D7	Male	15	2	0	0.133	0	0
	Female	15	1	0	0.066	0	0
	Total	30	3	0	0.100	0	0
D10	Male	15	3	0	0.200	0	0
	Female	15	2	0	0.133	0	0
	Total	30	5	0	0.166	0	0
D13	Male	15	1	0	0.066	0	0
	Female	15	3	0	0.200	0	0
	Total	30	4	0	0.133	0	0
D16	Male	15	2	0	0.133	0	0
	Female	15	3	0	0.200	0	0
	Total	30	5	0	0.166	0	0
D30	Male	27	5	5	0.185	1	0.185
	Female	54	6	6	0.111	1	0.111
	Total	81	11	11	0.135	1	0.135
Total	Male	117	17	5	0.145	0.294	0.042
	Female	144	22	6	0.152	0.272	0.041

n is the number of flies dissected; n′ refers to the number of flies with procyclic trypomastigotes (midgut); n″ refers to number of flies with metacyclic infection (proboscis and salivary gland); p = n′/n; m = n″/n′. The VC index was calculated according to the formula of [32]: VC = p × m, as described in the “Methods” section. DPI, day post infection