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A resistance of head lice (Pediculus capitis) to permethrin in Czech Republic.
Cent Eur J Public Health. 1995 Feb; 3(1):30-2.CE

Abstract

An outbreak of pediculosis at primary schools was recorded in the Czech Republic in 1992. Almost 20% of children in some schools were infested. This outbreak can be attributed to the resistance of head lice to permethrin, which has not been mentioned in literature yet. The resistance factors established in three towns range between 2 and 385 and between 5 and 557 for LC50 and LC90 values, respectively. This resistance has developed after exclusive use of pyrethroids lotion and shampoo in the Czech Republic since 1978, and it was accompanied by a cross-resistance to d-phenothrin and bioalethrin. But the susceptibility of head lice to malathion and pirimiphos-methyl in 1992 was very similar to that found in 1981. The lotion containing 0.3% of malathion (Diffusil H92 M) has been fully effective against the resistant lice. When introduced into the practice, it quickly reduced the infestation of children in primary schools. The other lotion and shampoo containing 0.3% and 0.7% of pirimiphos-methyl respectively were found to be effective as well.

Authors+Show Affiliations

Rupes V
National Institute of Public Health, Prague, Czech Republic.
Moravec J
No affiliation info available
Chmela J
No affiliation info available
Ledvinka J
No affiliation info available
Zelenková J
No affiliation info available

MeSH

AdolescentAnimalsChildCzech RepublicDisease OutbreaksFemaleHumansInsecticide ResistanceInsecticidesLethal Dose 50Lice InfestationsMalathionMaleOrganothiophosphorus CompoundsPermethrinPhthirapteraPyrethrins

Pub Type(s)

Journal Article

Language

eng

PubMed ID

7787823

Citation

Rupes, V, et al. "A Resistance of Head Lice (Pediculus Capitis) to Permethrin in Czech Republic." Central European Journal of Public Health, vol. 3, no. 1, 1995, pp. 30-2.
Rupes V, Moravec J, Chmela J, et al. A resistance of head lice (Pediculus capitis) to permethrin in Czech Republic. Cent Eur J Public Health. 1995;3(1):30-2.
Rupes, V., Moravec, J., Chmela, J., Ledvinka, J., & Zelenková, J. (1995). A resistance of head lice (Pediculus capitis) to permethrin in Czech Republic. Central European Journal of Public Health, 3(1), 30-2.
Rupes V, et al. A Resistance of Head Lice (Pediculus Capitis) to Permethrin in Czech Republic. Cent Eur J Public Health. 1995;3(1):30-2. PubMed PMID: 7787823.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A resistance of head lice (Pediculus capitis) to permethrin in Czech Republic. AU - Rupes,V, AU - Moravec,J, AU - Chmela,J, AU - Ledvinka,J, AU - Zelenková,J, PY - 1995/2/1/pubmed PY - 1995/2/1/medline PY - 1995/2/1/entrez SP - 30 EP - 2 JF - Central European journal of public health JO - Cent Eur J Public Health VL - 3 IS - 1 N2 - An outbreak of pediculosis at primary schools was recorded in the Czech Republic in 1992. Almost 20% of children in some schools were infested. This outbreak can be attributed to the resistance of head lice to permethrin, which has not been mentioned in literature yet. The resistance factors established in three towns range between 2 and 385 and between 5 and 557 for LC50 and LC90 values, respectively. This resistance has developed after exclusive use of pyrethroids lotion and shampoo in the Czech Republic since 1978, and it was accompanied by a cross-resistance to d-phenothrin and bioalethrin. But the susceptibility of head lice to malathion and pirimiphos-methyl in 1992 was very similar to that found in 1981. The lotion containing 0.3% of malathion (Diffusil H92 M) has been fully effective against the resistant lice. When introduced into the practice, it quickly reduced the infestation of children in primary schools. The other lotion and shampoo containing 0.3% and 0.7% of pirimiphos-methyl respectively were found to be effective as well. SN - 1210-7778 UR - https://www.unboundmedicine.com/medline/citation/7787823/A_resistance_of_head_lice__Pediculus_capitis__to_permethrin_in_Czech_Republic_ DB - PRIME DP - Unbound Medicine ER -