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Malar J. 2019 Mar 6;18(1):59. doi: 10.1186/s12936-019-2692-3.

Evaluation of MAGNet, a long-lasting insecticidal mosquito net against Anopheles fluviatilis in experimental huts in India.

Author information

1
ICMR-Vector Control Research Centre, Medical Complex, Indira Nagar, Puducherry, 605006, India.
2
ICMR-Vector Control Research Centre, Medical Complex, Indira Nagar, Puducherry, 605006, India. sssahu1961@gmail.com.
3
Indian Council of Medical Research, New Delhi, India.

Abstract

BACKGROUND:

MAGNet LN is a wash resistant long-lasting insecticidal (polyethylene) net (LLIN) in which the alpha-cypermethrin insecticide is incorporated within the 150 denier high density polyethylene monofilaments of the nets. The bio-efficacy of MAGNet LN was reported to be high even after 25 washes. The LN met the WHO criteria of Phase I evaluation and obtained recommendation from the World Health Organization Pesticide Evaluation Scheme (WHOPES) for Phase II trial. For registration of the LN in India, the current study was conducted to evaluate its efficacy after 20 or 25 washes compared to negative control (untreated net) and positive control (Duranet LN) in experimental huts against a wild, free flying pyrethroid susceptible population of Anopheles fluviatilis in terms of deterrence, blood-feeding inhibition, mortality and induced exophily.

METHODS:

The evaluation was carried out in six experimental huts located at Kandhaguda village in Malkangiri district, Odisha state following the WHO guidelines.

RESULTS:

The study showed that 25 times washed MAGNet LN produced 100% mortality in cone bioassays before and after hut evaluation. MAGNet washed 25 times did not differ significantly from all other treated nets in terms of deterring hut entry, induced exophily, blood feeding inhibition and causing mortality of An. fluviatilis.

CONCLUSIONS:

MAGNet LN showed extended wash resistance retaining its bio-efficacy up to 25 washes and met the WHOPES requirement of passing Phase II evaluation.

KEYWORDS:

Alpha-cypermethrin; Anopheles fluviatilis; Experimental huts; India; MAGNet

PMID:
30841885
PMCID:
PMC6404338
DOI:
10.1186/s12936-019-2692-3
[Indexed for MEDLINE]
Free PMC Article

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