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  • Title: Molecular Evidence of Bacteria in Clothes Lice Collected from Homeless People Living in Shelters in Marseille.
    Author: Ly TDA, Amanzougaghene N, Hoang VT, Dao TL, Louni M, Mediannikov O, Gautret P.
    Journal: Vector Borne Zoonotic Dis; 2020 Nov; 20(11):872-874. PubMed ID: 32366193.
    Abstract:
    We sought to evidence the presence of emerging bacterial pathogens in clothes lice collected from sheltered homeless individuals from Marseille, France. During the 2013-2018 period, a total of 507 lice were collected from 37 individuals and were processed for molecular analysis. We reported a low prevalence of Bartonella quintana DNA carriage (1.2%). No louse tested positive for Rickettsia sp., Rickettsia prowazekii, Borrelia sp., Anaplasma sp., Yersinia Pestis, or Coxiella burnetii. A comparison with studies conducted before 2013 showed a 17.5-fold reduction in the rate of B. quintana DNA positivity. By contrast, a high prevalence of Acinetobacter species DNA carriage (40.8%), mostly A. baumannii (32.9%), was observed, tending to increase over time. In addition, we detected Acinetobacter ursingii DNA in clothes lice for the first time. Genotypic characterization and antimicrobial susceptibility testing of A. baumannii isolates from clothes lice are needed to assess whether these A. baumannii strains present in lice are similar to those responsible for human infections and harbor mechanisms of resistance against antibiotics.
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