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Alphamethrin-impregnated bed nets for malaria and mosquito control in China
- Source :
- Transactions of the Royal Society of Tropical Medicine and Hygiene. 88(6)
- Publication Year :
- 1994
-
Abstract
- A community-based intervention trial was carried out to evaluate the effectiveness of alphamethrin-impregnated bed nets for control of Plasmodium vivax malaria and its vector in an area of moderate endemicity in southern Henan province, central China in 1990. Malaria incidence was significantly lower in the intervention group than in the comparison group (2.03 vs. 3.57 per 100 person-years at risk). The protective efficacy for malaria incidence was 43%. The prevalence of malaria parasitaemia among children under 10 years old in the intervention group was about one-quarter of that in the comparison group (0.93% vs. 3.25% and 0.71% vs. 1.96% after one and 4 months use of impregnated nets, respectively). Alphamethrin-impregnated bed nets had a mass killing effect on vector mosquitoes. The outdoor person-biting density of Anopheles anthropophagus and A. sinensis decreased by 70.3% and 29.3% respectively. The density of these 2 mosquito species found resting inside treated nets was close to zero. No side effect was found among users of impregnated bed nets. Impregnation with alphamethrin was more effective on polyester than on cotton netting and residual effects lasted at least one year. Use of alphamethrin is less expensive than permethrin and deltamethrin.
- Subjects :
- Veterinary medicine
China
Insecticides
Mosquito Control
Plasmodium vivax
Parasitemia
chemistry.chemical_compound
parasitic diseases
Anopheles
Pyrethrins
medicine
Malaria, Vivax
Prevalence
Animals
Humans
Child
biology
Ecology
Incidence (epidemiology)
Incidence
Public Health, Environmental and Occupational Health
Bedding and Linens
General Medicine
biology.organism_classification
medicine.disease
Insect Vectors
Mosquito control
Infectious Diseases
Deltamethrin
Cross-Sectional Studies
chemistry
Vector (epidemiology)
Parasitology
Malaria
Permethrin
medicine.drug
Subjects
Details
- ISSN :
- 00359203
- Volume :
- 88
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Transactions of the Royal Society of Tropical Medicine and Hygiene
- Accession number :
- edsair.doi.dedup.....834ceec5c68f54597f839d0f1b0f644b