| polymorphism of intron-1 in the voltage-gated sodium channel gene of anopheles gambiae s.s. populations from cameroon with emphasis on insecticide knockdown resistance mutations. | sequence variation at the intron-1 of the voltage-gated sodium channel gene in anopheles gambiae m- and s-forms from cameroon was assessed to explore the number of mutational events originating knockdown resistance (kdr) alleles. mosquitoes were sampled between december 2005 and june 2006 from three geographical areas: (i) magba in the western region; (ii) loum, tiko, douala, kribi, and campo along the atlantic coast; and (iii) bertoua, in the eastern continental plateau. both 1014s and 1014f kd ... | 2009 | 19538340 |