1921
Volume 74, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

Permethrin, in the form of a topical cream, is being increasingly used for community-based programs to control endemic scabies. The development of resistance has reduced the use of pyrethroids for the control of many arthropods of economic and health importance. The best recognized form of pyrethroid resistance, known as knockdown resistance or , has been linked to specific mutations in the target of these agents, the para-homologous voltage-sensitive sodium channel gene (). To develop tools to study resistance to pyrethroid acaricides, we cloned 3711 and 6151 bp, respectively, of cDNA and genomic fragments of the gene from scabies mite, . The sequence encompasses the major polymorphic amino acid residues associated with pyrethroid resistance. A polymerase chain reaction–based strategy has been developed that enables genotyping individual scabies mites. This will facilitate early detection and monitoring of pyrethroid resistance in scabies mite populations under drug selection pressure.

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2006-04-01
2017-09-21
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  • Received : 06 Jun 2005
  • Accepted : 08 Dec 2005

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