Variation in Malaria Transmission Dynamics in Three Different Sites in Western Kenya
The main objective was to investigate malaria transmission dynamics in three different sites, two highland villages (Fort Ternan and Lunyerere) and a lowland peri-urban area (Nyalenda) of Kisumu city. Adult mosquitoes were collected using PSC and CDC light trap while malaria parasite incidence data...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Journal of Tropical Medicine |
| Online Access: | http://dx.doi.org/10.1155/2012/912408 |
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| author | S. S. Imbahale W. R. Mukabana B. Orindi A. K. Githeko W. Takken |
| author_facet | S. S. Imbahale W. R. Mukabana B. Orindi A. K. Githeko W. Takken |
| author_sort | S. S. Imbahale |
| collection | DOAJ |
| description | The main objective was to investigate malaria transmission dynamics in three different sites, two highland villages (Fort Ternan and Lunyerere) and a lowland peri-urban area (Nyalenda) of Kisumu city. Adult mosquitoes were collected using PSC and CDC light trap while malaria parasite incidence data was collected from a cohort of children on monthly basis. Rainfall, humidity and temperature data were collected by automated weather stations. Negative binomial and Poisson generalized additive models were used to examine the risk of being infected, as well as the association with the weather variables. Anopheles gambiae s.s. was most abundant in Lunyerere, An. arabiensis in Nyalenda and An. funestus in Fort Ternan. The CDC light traps caught a higher proportion of mosquitoes (52.3%) than PSC (47.7%), although not significantly different (P=0.689). The EIR’s were 0, 61.79 and 6.91 bites/person/year for Fort Ternan, Lunyerere and Nyalenda. Site, month and core body temperature were all associated with the risk of having malaria parasites (P<0.0001). Rainfall was found to be significantly associated with the occurrence of P. falciparum malaria parasites, but not relative humidity and air temperature. The presence of malaria parasite-infected children in all the study sites provides evidence of local malaria transmission. |
| format | Article |
| id | doaj-art-57c6b2d678d342e49a2db308cf72c37b |
| institution | Kabale University |
| issn | 1687-9686 1687-9694 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Tropical Medicine |
| spelling | doaj-art-57c6b2d678d342e49a2db308cf72c37b2025-02-03T05:50:57ZengWileyJournal of Tropical Medicine1687-96861687-96942012-01-01201210.1155/2012/912408912408Variation in Malaria Transmission Dynamics in Three Different Sites in Western KenyaS. S. Imbahale0W. R. Mukabana1B. Orindi2A. K. Githeko3W. Takken4Laboratory of Entomology, Wageningen University, P.O. Box 8031, 6700 EH Wageningen, The NetherlandsInternational Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, KenyaInternational Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, KenyaKenya Medical Research Institute, Centre for Global Health Research, P.O. Box 1578, Kisumu 40100, KenyaLaboratory of Entomology, Wageningen University, P.O. Box 8031, 6700 EH Wageningen, The NetherlandsThe main objective was to investigate malaria transmission dynamics in three different sites, two highland villages (Fort Ternan and Lunyerere) and a lowland peri-urban area (Nyalenda) of Kisumu city. Adult mosquitoes were collected using PSC and CDC light trap while malaria parasite incidence data was collected from a cohort of children on monthly basis. Rainfall, humidity and temperature data were collected by automated weather stations. Negative binomial and Poisson generalized additive models were used to examine the risk of being infected, as well as the association with the weather variables. Anopheles gambiae s.s. was most abundant in Lunyerere, An. arabiensis in Nyalenda and An. funestus in Fort Ternan. The CDC light traps caught a higher proportion of mosquitoes (52.3%) than PSC (47.7%), although not significantly different (P=0.689). The EIR’s were 0, 61.79 and 6.91 bites/person/year for Fort Ternan, Lunyerere and Nyalenda. Site, month and core body temperature were all associated with the risk of having malaria parasites (P<0.0001). Rainfall was found to be significantly associated with the occurrence of P. falciparum malaria parasites, but not relative humidity and air temperature. The presence of malaria parasite-infected children in all the study sites provides evidence of local malaria transmission.http://dx.doi.org/10.1155/2012/912408 |
| spellingShingle | S. S. Imbahale W. R. Mukabana B. Orindi A. K. Githeko W. Takken Variation in Malaria Transmission Dynamics in Three Different Sites in Western Kenya Journal of Tropical Medicine |
| title | Variation in Malaria Transmission Dynamics in Three Different Sites in Western Kenya |
| title_full | Variation in Malaria Transmission Dynamics in Three Different Sites in Western Kenya |
| title_fullStr | Variation in Malaria Transmission Dynamics in Three Different Sites in Western Kenya |
| title_full_unstemmed | Variation in Malaria Transmission Dynamics in Three Different Sites in Western Kenya |
| title_short | Variation in Malaria Transmission Dynamics in Three Different Sites in Western Kenya |
| title_sort | variation in malaria transmission dynamics in three different sites in western kenya |
| url | http://dx.doi.org/10.1155/2012/912408 |
| work_keys_str_mv | AT ssimbahale variationinmalariatransmissiondynamicsinthreedifferentsitesinwesternkenya AT wrmukabana variationinmalariatransmissiondynamicsinthreedifferentsitesinwesternkenya AT borindi variationinmalariatransmissiondynamicsinthreedifferentsitesinwesternkenya AT akgitheko variationinmalariatransmissiondynamicsinthreedifferentsitesinwesternkenya AT wtakken variationinmalariatransmissiondynamicsinthreedifferentsitesinwesternkenya |