Epidemiological consequences of a newly discovered cryptic subgroup of Anopheles gambiae


Yakob, L; (2011) Epidemiological consequences of a newly discovered cryptic subgroup of Anopheles gambiae. Biology letters, 7 (6). pp. 947-9. ISSN 1744-9561 DOI: https://doi.org/10.1098/rsbl.2011.0453

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Abstract

: A cryptic subgroup of Anopheles gambiae sensu stricto mosquitoes was recently discovered in West Africa. This 'GOUNDRY' subgroup has increased susceptibility to Plasmodium falciparum, the most deadly form of malaria. Unusual for this major malaria vector, GOUNDRY mosquitoes also seem to bite exclusively outdoors. A mathematical model is developed to assess the epidemiological implications of current vector control tools, bednets and indoor residual spray, preferentially suppressing the more typical indoor biting mosquitoes. It is demonstrated that even if the GOUNDRY mosquitoes have a decreased preference for human blood, vector controls which select for increased GOUNDRY abundance relative to their indoor biting counterparts risks intensifying malaria transmission. Given the widely observed phenomenon of outdoor biting by major malaria vectors, this behaviour should not be ignored in future modelling efforts and warrants serious consideration in control programme strategy.<br/>

Item Type: Article
Keywords: Africa, Western, Animals, Anopheles gambiae, classification, parasitology, physiology, Competitive Behavior, Feeding Behavior, Humans, Insect Bites and Stings, epidemiology, prevention & control, Logistic Models, Malaria, Falciparum, epidemiology, prevention & control, transmission, Mosquito Control, Plasmodium falciparum, Population Dynamics, Species Specificity
Faculty and Department: Faculty of Infectious and Tropical Diseases > Dept of Disease Control
PubMed ID: 21693489
Web of Science ID: 296890900044
URI: http://researchonline.lshtm.ac.uk/id/eprint/1912187

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