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Borrelia recurrentis in head lice, Ethiopia

Amina Boutellis1, Oleg Mediannikov, Kassahun Desalegn Bilcha

  • 1Marseille Université, Marseille, France.

Emerging Infectious Diseases
|May 8, 2013
PubMed

Insights

The body louse transmits Borrelia recurrentis, but head lice may also carry these bacteria. Further research is needed to confirm if head lice can spread this relapsing fever pathogen between people.

Area of Science:

  • Medical Entomology
  • Infectious Diseases
  • Microbiology

Background:

  • Borrelia recurrentis, the causative agent of louse-borne relapsing fever, has historically been transmitted exclusively by the body louse (Pediculus humanus humanus).
  • Epidemics of louse-borne relapsing fever are often associated with conditions of poor hygiene and overcrowding where body lice infestation is prevalent.

Purpose of the Study:

  • To investigate the potential role of head lice (Pediculus humanus capitis) as vectors of Borrelia recurrentis.
  • To determine if Borrelia recurrentis DNA can be detected in head lice collected from patients diagnosed with relapsing fever.

Main Methods:

  • Collection of head lice samples from patients presenting with symptoms of relapsing fever in Ethiopia.
  • Molecular detection of Borrelia recurrentis DNA within the collected head louse specimens using established laboratory techniques.

Main Results:

  • Borrelia recurrentis DNA was identified in 23% of the head lice samples examined.
  • The findings suggest a potential, previously unrecognized association between head lice and Borrelia recurrentis.

Conclusions:

  • Head lice may serve as a reservoir or vector for Borrelia recurrentis, challenging the long-held understanding of its transmission.
  • Further studies are crucial to elucidate the transmission dynamics and public health implications of Borrelia recurrentis in head lice.
Keywords:
Bartonella quintanaBorrelia recurrentisEthiopiaRickettsiabacteriabody licehead licerelapsing fevertrench fever

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