@article{fdi:010060699, title = {{I}mpact of cyfluthrin ({S}olfac {EW}050) impregnated bed nets on malaria transmission in the city of {M}bandjock : lessons for the nationwide distribution of long-lasting insecticidal nets ({LLIN}s) in {C}ameroon}, author = {{A}ntonio-{N}kondjio, {C}. and {D}emanou, {M}. and {E}tang, {J}. and {B}ouchit{\'e}, {B}ernard}, editor = {}, language = {{ENG}}, abstract = {{B}ackground: {I}nsecticide treated materials remain the mainstay for malaria prevention. {T}he current study reports on the entomological impact of cyfluthrin impregnated bed nets on malaria transmission in {M}bandjock, a semi urban locality in southern {C}ameroon. {S}everal findings pertaining to the recent distribution of {LLIN}s across {C}ameroon are discussed. {M}ethods: {M}alaria transmission and vector bionomics were monitored before and after impregnated net coverage. {B}ed nets were distributed in {M}bandjock, whereas the locality of {N}koteng was free of bed nets during the entire study period. {J}anuary to {J}une 1997 represented the period before bed net coverage and {S}eptember 1997 to {S}eptember 1998 was the period after bed net coverage. {A}dult mosquitoes were collected by human landing catches. {M}osquito genus and species were identified with morphological and molecular diagnostic tools. {A}nopheline salivary glands and ovaries were dissected to determine female infectious status and parity rates respectively. {R}esults: {A} total of 6959 anophelines corresponding to 6029 in {M}bandjock and 930 in {N}koteng were collected in the course of the study. {S}even species were recorded in both cities : {A}nopheles coustani, {A}n. funestus, {A}n. gambiae sl, {A}n. moucheti, {A}n. ziemanni, {A}n. nili and {A}n. paludis. {A}n. gambiae s.l. (>95% {A}n. gambiae {S} molecular form) was the most abundant species representing 75.6% and 86.6% of the total anophelines caught in {M}bandjock before and after bed net coverage respectively. {T}he human biting rate ({HBR}) in {M}bandjock decreased from 17 bites/human/night before bed net coverage to less than 4 bites/human/night during the first 7 months following impregnated bed net coverage. {A} significant decrease of mosquito parity rate was recorded when comparing the period before (52%) and after (46.5%) bed net distribution. {T}he average infection rate of malaria vectors significantly decreased from 5.3% before to 1.8% after bed net coverage (p < 0.0001). {T}he entomological inoculation rate in {M}bandjock was reduced by 74% varying from 124.1 infected bites/human/year before bed net distribution, to 32.5 infected bites/human/year after bed net coverage. {A}ll entomological indexes were relatively stable in {N}koteng and no reduction of malaria transmission was recorded in this locality. {C}onclusion: {T}he study confirms the effectiveness of cyfluthrin impregnated nets in reducing malaria transmission. {L}essons from this study could be essential to draw guidelines for the management of the recent nationwide distribution of {LLIN}s across {C}ameroon in 2011.}, keywords = {{C}yfluthrin ; {I}mpregnated nets ; {M}alaria ; {T}ransmission ; {A}nopheles ; {C}ameroon ; {CAMEROUN}}, booktitle = {}, journal = {{P}arasites and {V}ectors}, volume = {6}, numero = {}, pages = {10}, ISSN = {1756-3305}, year = {2013}, DOI = {10.1186/1756-3305-6-10}, URL = {https://www.documentation.ird.fr/hor/fdi:010060699}, }