Best-bet integrated strategies for containing drug-resistant trypanosomes in cattle

Parasites & Vectors

Table 2 Trypanosome prevalences in risk group calves by area and monitoring dates during the intervention (June 2008-June 2009) and post-intervention phase (November 2009) in south-east Mali

Monitoring dates	Intervention area							Control area
	Trypanosome positive cattle				No. cattle	Prev %⁴	95 % CI⁵	Trypanosome positive cattle				No. cattle	Prev %⁴	95 % CI⁵
	T.c.¹	T.v.²	Mixed³	Total				T.c.¹	T.v.²	Mixed³	Total
Jun. 2008	1	3	0	4	71	5.6^a	1.8-13.0	2	14	0	19	84	19.0^a	11.7-28.5
Nov. 2008	2	7	0	9	126	7.1^a	3.5-12.7	13	17	2	32	157	20.4^a,b	14.6-27.2
Feb. 2009	0	1	0	1	139	0.7^b,c	0.0-3.5	11	10	1	22	163	14.1^a	9.4-20.1
Jun. 2009	1	1	0	2	161	1.2^b,c	0.2-4.0	11	13	2	26	175	16.0^a	10.2-20.7
Nov. 2009	0	0	0	0	212	0^b	0	21	15	1	37	188	20.2^a	14.9-26.4
Total/Mean	4	12	0	16	709	2.3 ^b,c	1.3-3.6	58	69	6	133	767	17.3 ^a	14.8-20.1

¹ T.c. = Trypanosoma congolense.
² T.v. = T. vivax.
³Mixed trypanosome infection were T. congolense and T. vivax.
⁴Prev. % = Percent prevalence.
⁵95 % CI = 95 % confidence interval.
Trypanosome prevalences with different letter superscripts are significantly (Pearson χ² test; p < 0.05) different from those of Nov 2007 along the row and/ or column of comparison.

ISSN: 1756-3305