Population genetics of forest type of Trypanosoma congolense circulating in Glossina palpalis palpalis of Fontem in the South-West region of Cameroon

Table 2 Infection rates of Trypanosoma congolense according to years capture

Years of capture	NC	NE	T + (%)	Number of positive PCR (%)
				TCF	TCS	NP
2006	492	355	1 (0.28)	12 (3.38)	0 (0)	12 (3.38)
2007	2203	1241	18 (1.45)	42 (3.38)	22 (1.77)	64 (5.16)
2009	652	307	6 (1.95)	40 (13.03)	6 (1.95)	44 (14.33)**
Total	3347	1903	25 (1.31)	94 (4,93)	28 (1.47)	120 (6.36)
X ²			2.804	51.018	6.573	41.389
P			0.246*	<0.0001	0.037	<0.0001

NC: Number of tsetse captured; NE: number of tsetse examined; T + number of tsetse flies found infected by the microscopy; TCF: Trypanosoma congolense“forest type”; TCS: Trypanosoma congolense“savannah type”; NP: number of tsetse flies with T. congolense (forest and/or savannah type) in their midguts; X²: Chi-square; P: p-value; *P value not significant; **refer to the year where mixed infections were identified.

ISSN: 1756-3305