Determination of Knockdown Resistance (kdr) Allele Frequencies (T929I mutation) in Head Louse Populations from Mexico, Canada, and Peru.
Korean J Parasitol
; 60(3): 217-221, 2022 Jun.
Article
em En
| MEDLINE
| ID: mdl-35772742
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.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Infestações por Piolhos
/
Pediculus
/
Inseticidas
Limite:
Animals
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Humans
País/Região como assunto:
America do sul
/
Mexico
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Peru
Idioma:
En
Revista:
Korean J Parasitol
Assunto da revista:
PARASITOLOGIA
Ano de publicação:
2022
Tipo de documento:
Article
País de publicação: