Abstract

Vector resistance to insecticides is becoming a major obstacle to malaria prevention measures. A baseline survey was carried out in Khartoum city, Sudan, during September-November 2007, to map the insecticide susceptibility status ofAnophelesarabiensis and to examine the correlation with insecticide usage in urban agriculture. Susceptibility tests were conducted in 6 sentinel sites representing urban and periurban strata of the city. Mortality rates and knockdown times were calculated for 8 insecticides on a total of 9820 specimens. An. arabiensis was susceptible to bendiocarb (98.1%), propoxur (100%), fenitrothion (100%), deltamethrin (99.8%) and lambda-cyhalothrin (99.2%). Susceptibility rates were significantly different between urban and periurban sites for malathion (80.8% vs 56.0%), DDT (99.0% vs 95.0%) and permethrin (98.5% vs 96.3%). The 50% knockdown times were significantly higher in periurban than urban populations of An. arabiensis for deltamethrin, lambda-cyhalothrin and malathion.

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Authors

Seidahmed OM, Abdelmajed MA, Mustafa MS, Mnzava AP

Institution

Department of Medical Entomology, National Health Laboratory, Federal Ministry of Health, Khartoum, Sudan. osamamekki@gmail.com

Source

Eastern Mediterranean health journal = La revue de santé de la Méditerranée orientale = al-Majallah al-ṣiḥḥīyah li-sharq al-mutawassiṭ 18:7 2012 Jul pg 769-76

MeSH

Animals
Anopheles
Cities
Drug Resistance
Female
Humans
Insect Vectors
Insecticides
Malaria
Male
Mosquito Control
Polymerase Chain Reaction
Sudan
Urban Population

Pub Type(s)

Journal Article

Language

eng

PubMed ID

22891527