Gustavo Ponce-Garcia, Olga K Villanueva-Segura, Karina Garza-Elizondo, Heriberto M Villegas-Ramirez, Ildefonso Fernandez-Salas, Iram P Rodriguez-Sanchez, Felipe Dzul-Manzanilla, Adriana E Flores-Suarez
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Determination of Knockdown Resistance (kdr) Allele Frequencies (T929I mutation) in Head Louse Populations from Mexico, Canada, and Peru.
The head louse Pediculus humanus capitis (De Geer) is a hematophagous ectoparasite that inhabits the human scalp. The infestations are asymptomatic; however, skin irritation from scratching occasionally may cause secondary bacterial infections. The present study determined the presence and frequency of the knockdown resistance (kdr) mutation T929I in 245 head lice collected from Mexico, Peru, and Canada. Head lice were collected manually using a comb in the private head lice control clinic. Allele mutation at T9291 was present in 100% of the total sampled populations (245 lice) examined. In addition, 4.89% of the lice were homozygous susceptible, whereas 6.93% heterozygous and 88.16% homozygous were resistant, respectively. This represents the second report in Mexico and Quebec and fist in Lima.
期刊介绍：
The Korean Journal of Parasitology is the official journal paperless, on-line publication after Vol. 53, 2015 of The Korean Society for Parasitology and Tropical Medicine. Abbreviated title is ‘Korean J Parasitol’. It was launched in 1963. It contains original articles, case reports, brief communications, reviews or mini-reviews, book reviews, and letters to the editor on parasites of humans and animals, vectors, host-parasite relationships, zoonoses, and tropical medicine. It is published bimonthly in February, April, June, August, October, and December each year. Supplement numbers are at times published. All of the manuscripts are peer-reviewed.
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