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Bioassay evaluation on the efficacy of α-cypermethrin impregnated into long lasting insecticide treated nets using Anopheles stephensi.
MedLine Citation:
PMID:  23043917     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
OBJECTIVE: To evaluate the bioefficacy of α-cypermethrin impregnated into long lasting insecticide treated nets (LLITNs-INTERCEPTOR®) against main malaria vector, Anopheles stephensi (An. stephensi).
METHODS: The effectiveness of bed net impregnated with α-cypermethrin (INTERCEPTOR®) with washing was evaluated. The washing procedure and bioassay tests were carried out according to the WHO-recommended methods. Malaria vector, An. stephensi was exposed to impregnated bed net for three minutes and then mortality measured after 24 h recovery period. Knockdown was also measured according to the logarithmic times.
RESULTS: Result of cone bioassay method showed that bioefficacy of α-cypermethrin decreased from 100% in unwashed to 15% in 20 washes. KT(50) was measure as one minute in one wash and increased to 40 min in 20 washes.
DISCUSSION: Findings of this study provide guideline for malaria vector control authorities and people using pyrethroid-impregnated bed nets.
Authors:
Vatandoost Hassan; Mamivand Poor Hossein; Shayeghi Mansoreh; Abai Mohamad Reza; Raeisi Ahmad; Nikpoor Fatemeh
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Asian Pacific journal of tropical medicine     Volume:  5     ISSN:  1995-7645     ISO Abbreviation:  Asian Pac J Trop Med     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101533720     Medline TA:  Asian Pac J Trop Med     Country:  Singapore    
Other Details:
Languages:  eng     Pagination:  785-8     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Hainan Medical College. Published by Elsevier B.V. All rights reserved.
Affiliation:
Department of Medical Entomology & Vector Control, School of Public Health & National Institute of Health Research, Tehran University of Medical Sciences, P.O. Box, 6446-14155, Tehran, Iran. Electronic address: hvatandoost1@yahoo.com.
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