Expression of the cytochrome P450s, CYP6P3 and CYP6M2 are significantly elevated in multiple pyrethroid resistant populations of Anopheles gambiae s.s. from Southern Benin and Nigeria

Table 1 Molecular form, % mortality and kdr frequency of An. gambiae from Southern Benin and Nigeria

Collection site	Cytotype (N = 30)	% Mortality (N = 80)	West kdr frequency (N = 30)
Orogun (control site, peri-urban)	M	100*	0
Akron (agricultural)	M	23*	0.86
Ojoo (oil contamination)	M	80*	0
Gbedjromede (urban)	M	36†	0.83

*Mortality rate 24 hours post-exposure to 0.75% permethrin for 1 hour.
†Mortality rate following 10 min exposure to permethrin impregnated nets (Olyset impregnated nets at 1 g/m2)

ISSN: 1471-2164