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Volume 78, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

A nationwide yearly cycle of indoor residual spraying (IRS) with a pyrethroid, alphacypermethrin, at a dosage of 50 mg/m was instituted in 2004 in the Democratic Republic of São Tomé and Príncipe. Rates of IRS acceptance were high, varying from 82% to 95% for dwellings and outhouses. Epidemiologic surveys of the children < 9 years of age before and after the first IRS cycle revealed a rapid reduction in malaria. Overall prevalence of malaria parasitemia for all districts was lowered from 20.1% to 2.8% at 12 months after the first IRS and reached 0.7% at 8 months after the second IRS. Longer insecticidal persistence was found on wood than on cement with alphacypermethrin.

Copyright 2008 The American Society of Tropical Medicine
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2008-02-01
2018-07-17

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Rapid Control of Malaria by Means of Indoor Residual Spraying of Alphacypermethrin in the Democratic Republic of São Tomé and Príncipe
The American Journal of Tropical Medicine and Hygiene 78, 248 (2008); https://doi.org/10.4269/ajtmh.2008.78.248
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  • Received : 10 Apr 2007
  • Accepted : 28 Sep 2007

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