Study of the Clinical, Microbiological and Epidemiological Characteristics of Recurrent Imported Borreliosis Confirmed by the CNR Borrelia
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: Borrelia Recurrentis Infection. Basic parameters: from 1 year · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- France
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Study of the Clinical, Microbiological, and Epidemiological Characteristics of Recurrent Imported Borreliosis Confirmed by the Borrelia National Reference Center
Overview
Recurrent borreliosis (RB) is a bacterial infection transmitted by ticks or lice. These infections occur in both temperate and tropical regions, but are rare in Australia and Antarctica. Due to climate change, the areas inhabited by the vectors of these infections are shifting, and the number of at-risk regions has significantly increased in recent years. More than twenty RB species have been described, responsible for variable clinical manifestations including fever, myalgia, digestive disorders, and sometimes neurological symptoms. Tick-borne RB represents a major public health problem, particularly in Africa. Mortality from these infections ranges from 5% to 10%. In recent years, diagnostic techniques have evolved. Microscopic diagnosis was initially the gold standard but had only moderate sensitivity and exhibited inter-operator variability. The advent of molecular biology now allows for increased sensitivity with excellent specificity and also enables the identification of the causative species. A few cases have been described in France, consisting mainly of case reports. Therefore, this study will provide a comparative description, within a series, of cases diagnosed in France: symptoms, patients' countries of origin, Borrelia species, diagnostic techniques, management, and patient outcomes.
Primary outcome measures
- Clinical and biological description of cases of recurrent imported borreliosis [Time frame: Up to 12 years]
Eligibility criteria
Inclusion criteria
- Minor or adult subject
- Having presented (from January 1, 2013, to January 1, 2025) with recurrent imported borreliosis, the diagnosis of which was confirmed by the CNR Borrelia in Strasbourg
Exclusion criteria
\- Refusal to participate in the study
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Case-only
Study locations
France · 1 center
- Laboratoire de Bactériologie - CHU de Strasbourg - France — Strasbourg
Identifiers
NCT: NCT07335965 · 9541