Bioassay evaluation on the efficacy of α-cypermethrin impregnated into long lasting insecticide treated nets using Anopheles stephensi
Asian Pacific Journal of Tropical Medicine
;
(12): 785-788, 2012.
Article
in English
| WPRIM
| ID: wpr-819592
ABSTRACT
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pharmacology
/
Pyrethrins
/
Reference Standards
/
Biological Assay
/
Mosquito Control
/
Epidemiology
/
Guidelines as Topic
/
Insecticide-Treated Bednets
/
Insecticides
/
Iran
Type of study:
Practice guideline
/
Qualitative research
Limits:
Animals
/
Humans
Country/Region as subject:
Asia
Language:
English
Journal:
Asian Pacific Journal of Tropical Medicine
Year:
2012
Type:
Article
Similar
MEDLINE
...
LILACS
LIS