Assessing the susceptibility status of Aedes albopictus on Penang Island using two different assays
- Author:
Chan, H.H.
;
Mustafa,F.F.W.
;
Zairi, J.*
- Publication Type:Journal Article
- From:Tropical Biomedicine
2011;28(2):464-470
- CountryMalaysia
- Language:English
-
Abstract:
Routine surveillance on resistant status of field mosquito populations is important
to implement suitable strategies in order to prevent pest outbreaks. WHO test kit bioassay is
the most frequent bioassay used to investigate the susceptibility status of field–collected
mosquitoes, as it is relatively convenient to be carried out in the field. In contrast, the topical
application of active ingredient is less popular in investigating the susceptibility status of
mosquitoes. In this study, we accessed the susceptibility status of Aedes albopictus Skuse
collected from two dengue hotspots on Penang Island: Sungai Dua and Persiaran Mayang
Pasir. Two active ingredients: permethrin and deltamethrin, were used. WHO test kit bioassay
showed that both wild strains collected were susceptible to the two active ingredients; while
topical application assay showed that they were resistant. This indicated that WHO test kit
bioassay less sensitive to low level of resistance compared to topical application assay.
Hence, topical application is expected to be more indicative when used in a resistance
surveillance programme.
- Full text:W020150615382463091784.pdf
