Journal
AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
Volume 82, Issue 2, Pages 176-184Publisher
AMER SOC TROP MED & HYGIENE
DOI: 10.4269/ajtmh.2010.09-0373
Keywords
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Funding
- Gambian Department of State for Health
- National Institutes of Health [1 UO1 AI658250-01]
- MRC [G0700837] Funding Source: UKRI
- Medical Research Council [G0700837] Funding Source: researchfish
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Larviciding to control malaria was assessed in rural areas with extensive seasonal flooding, Larval and adult mosquitoes and malaria incidence were surveyed routinely in four 100-km(2) areas either Side of the Gambia River. Baseline data were collected in 2005. Microbial larvicide was applied to all water bodies by hand application with water-dispersible granular formulations and corn granules weekly from May to November in two areas in 2006 and in the other two areas in 2007 in a cross-over design. The intervention was associated with a reduction in habitats with late stage anopheline larvae and all 88% reduction in larval densities (P < 0.001). The effect of the intervention oil mosquito densities was not pronounced and Was Confounded by the distance Of villages to the major breeding sites and year (P = 0.002). There was no reduction in clinical Malaria or anemia. Ground applications of non-residual larvicides with simple equipment Lire not effective in riverine areas with extensive flooding, where many habitats are poorly demarcated, highly mobile, and inaccessible on foot.
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