Challenges for malaria elimination in Zanzibar: pyrethroid resistance in malaria vectors and poor performance of long-lasting insecticide nets

Table 1 Species identification and insecticide susceptibility tests for mosquitoes collected on Pemba Island in December 2010

		*An. arabiensis*	*An. merus*	Unidentified	Total	% 24 hr mortality
Lambda-cyhalothrin 0.05%	Dead	26	5	3	74	46
Lambda-cyhalothrin 0.05%	Alive	36	0	4	74	46
Deltamethrin 0.05%	Dead	40	0	2	100	42
Deltamethrin 0.05%	Alive	48	7	3	100	42
Permethrin 0.75%	Dead	28	16	7	89	57
Permethrin 0.75%	Alive	37	1	0	89	57
Bendiocarb 0.1%	Dead	80	0	2	82	100
Bendiocarb 0.1%	Alive	0	0	0	82	100
DDT 4%	Dead	95	0	3	98	100
DDT 4%	Alive	0	0	0	98	100
Control	Dead	0	0	0	111	0
	Alive	101	5	5

ISSN: 1756-3305