Malaria Journal

Table 3 WHO insecticide susceptibility test results on 1–3 day old F₁ An. arabiensis reared from females collected from Gwave village in 2006 and 2008. Results expressed as % mortality 24 hr post exposure. (* indicate Families showing cross resistance to DDT and permethrin, Fam = Family)

From: Pyrethroid resistance in the major malaria vector Anopheles arabiensis from Gwave, a malaria-endemic area in Zimbabwe

February 2006
	4% DDT		0.75% permethrin			4% DDT		0.75% permethrin			4% DDT		0.75% permethrin
Fam.	(n)	% mort	(n)	% mort	Fam.	(n)	% mort	(n)	% mort	Fam.	(n)	% mort	(n)	% mort
27*	7	28.6	13	53.9	82	9	100	8	63.6	113	10	60	4	100
37	11	72.7	11	81.8	84	10	90	11	54.5	118*	9	66.7	6	16.7
38	9	100	12	66.7	85	13	100	10	50	120	10	100	10	100
46	5	100	8	0	90	8	100	10	100	135	11	100	10	80
48	10	100	10	70	94*	8	62.5	9	44.4	139	11	100	6	66.7
53	11	100	12	100	95	13	69.2	6	100	144*	14	78.6	15	66.7
57	7	100	15	46.7	97	11	81.8	13	92.3	149	11	54.6	10	100
64*	12	33.3	8	50	101	9	100	11	18.2	156*	13	69.2	11	45.5
66	7	100	11	45.5	103	9	100	10	90	169	10	100	10	60
74	12	16.7	12	100	104	8	87.5	12	50	166	8	100	12	83.3
77	14	100	11	63.6	108	7	100	8	100	178	7	100	9	55.6
80	10	100	10	90	111	11	100	11	72.7	180	9	100	9	100
January 2008
	4% DDT		0.75% permethrin			4% DDT		0.75% permethrin			4% DDT		0.75% permethrin
Fam.	(n)	% mort	(n)	% mort	Fam.	(n)	% mort	(n)	% mort	Fam.	(n)	% mort	(n)	% mort
654	11	100	15	93.33	740	16	100	18	72.2	821	12	100	15	53.3
681	14	100	13	61.54	755	13	100	20	55	854	15	100	15	100
682*	25	74	19	68.23	769	23	100	21	52.4	856	10	100	8	50
712	12	100	15	40	771*	10	78	14	14.3	858	15	100	15	100
738	11	100	10	20	808	20	100	17	35.3

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ISSN: 1475-2875

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