alexa Infestation by pyrethroids resistant bed bugs in the suburb of Paris, France.
General Science

General Science

Entomology, Ornithology & Herpetology: Current Research

Author(s): Durand R, Cannet A, Berdjane Z, Bruel C, Haouchine D,

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Abstract Bed bugs are hematophagous insects responsible for a re-emerging and challenging indoor pest in many countries. Bed bugs infestations may have health consequences including nuisance biting, cutaneous and systemic reactions. This resurgence can probably be attributed to factors such as increased international travel and development of resistance against insecticides. Resistance against pyrethroids has been reported several times from the USA and rarely in Europe. In France, very few data on bed bugs are available. The present study aimed to assess the infestation by bed bugs of a complex of two high-rise apartment buildings in the suburb of Paris and to evaluate their susceptibility to pyrethroid insecticides. We inspected for bed bugs 192 out of 198 apartments units (97\%) and interviewed their residents. 76 (39.6\%) apartments were infested. Among the 97 residents living in infested apartments, 53 (54.6\%) reported bed bug bites. A total of 564 bed bugs were collected in the infested units. Bioassays showed that 54 out of 143 bed bugs were resistant to pyrethroids (37.8\%; 95\% confidence interval: 29.9-45.7\%). DNA sequencing showed that all bed bugs tested (n=124) had homozygous L925I kdr-like gene mutation. The level of pyrethroid resistance found indicates that this phenomenon was already established in the site and prompts the need to reevaluate the wide use of pyrethroids to control bed bugs.
This article was published in Parasite and referenced in Entomology, Ornithology & Herpetology: Current Research

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