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Cultivation Methods of Spirochetes from Borrelia burgdorferi Sensu Lato Complex and Relapsing Fever Borrelia
Published on: November 25, 2022
[Borreliosis and relapsing fever]
Alice Raffetin1, Solène Patrat-Delon2, Céline Cazorla3
1Centre de Référence des maladies vectorielles à tiques (CRMVT), Paris et région Nord, CH Villeneuve-Saint- Georges, France.
Relapsing fevers borreliosis (RFB) are bacterial infections transmitted by lice or ticks. Early diagnosis via microscopy or PCR and prompt treatment with doxycycline or ceftriaxone are crucial for a good outcome.
Area of Science:
- Infectious Diseases
- Bacteriology
- Epidemiology
Background:
- Relapsing fevers borreliosis (RFB) are caused by Borrelia bacteria, transmitted by arthropods like lice and ticks.
- Louse-borne RFB occurs epidemically during crises, while tick-borne RFB is geographically distributed and sporadic.
Purpose of the Study:
- To summarize the transmission, clinical presentation, diagnosis, treatment, and outcomes of relapsing fevers borreliosis.
Main Methods:
- Review of transmission vectors (lice, ticks) and geographical distribution.
- Description of clinical manifestations, including incubation period and recurrent fever patterns.
- Overview of diagnostic methods (microscopy, PCR, culture) and treatment protocols (doxycycline, ceftriaxone).
Main Results:
- Incubation period ranges from 3 to 20 days, with recurrent fevers averaging every 7 days.
- Diagnosis is aided by abundant bacteremia during febrile phases.
- Mortality rates vary from 2-5%, with generally good outcomes after treatment.
Conclusions:
- RFB is a treatable condition with a generally favorable prognosis when diagnosed and managed promptly.
- Understanding transmission dynamics and clinical features is key for effective public health interventions.
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