Rapid control of malaria by means of indoor residual spraying of alphacypermethrin in the Democratic Republic of São Tomé and Príncipe.
Am J Trop Med Hyg
; 78(2): 248-50, 2008 Feb.
Article
em En
| MEDLINE
| ID: mdl-18256424
ABSTRACT
A nationwide yearly cycle of indoor residual spraying (IRS) with a pyrethroid, alphacypermethrin, at a dosage of 50 mg/m(2) 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.
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Base de dados:
MEDLINE
Assunto principal:
Piretrinas
/
Controle de Mosquitos
/
Insetos Vetores
/
Inseticidas
/
Malária
/
Anopheles
Tipo de estudo:
Risk_factors_studies
Limite:
Animals
/
Child
/
Child, preschool
/
Humans
Idioma:
En
Revista:
Am J Trop Med Hyg
Ano de publicação:
2008
Tipo de documento:
Article