Impact of indoor residual spraying of lambda-cyhalothrin on malaria prevalence and anemia in an epidemic-prone district of Muleba, north-western Tanzania.
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| Abstract |
The Government of Tanzania introduced indoor residual spraying (IRS) in Muleba district in north-western Tanzania after frequent malaria epidemics. Malaria parasitological baseline and two cross-sectional follow-up surveys were conducted in villages under the IRS program and those not under IRS to assess the impact of IRS intervention. After two rounds of IRS intervention there was a significant reduction of malaria parasitological indices in both two villages. In IRS villages overall, parasitemia prevalence was reduced by 67.2%, splenomegaly was reduced by 75.8%, whereas anemia was reduced by 50.5%. There was also a decline of malaria parasite density from 896.4 at baseline to 128.8 at second follow-up survey. Similarly, there was also a reduction of malaria parasitological indices in non-IRS villages; however, parasitological indices in IRS villages remained far below the levels in non-IRS villages. The reduction of malaria parasitological indices in non-IRS villages might have been contributed by interventions other than IRS.
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| Authors | Fabian M Mashauri, Safari M Kinung'hi, Godfrey M Kaatano, Stephen M Magesa, Coleman Kishamawe, Joseph R Mwanga, Soori E Nnko, Robert C Malima, Chacha N Mero, Leonard E G Mboera |
| Journal | The American journal of tropical medicine and hygiene (Am J Trop Med Hyg) Vol. 88 Issue 5 Pg. 841-9 (May 2013) ISSN: 1476-1645 [Electronic] United States |
| PMID | 23458959 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't) |
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