Borrelia infectious disease

This study aims to develop a better blood test for early Lyme disease in children. Current tests often miss early infections or give false positives. Researchers will also study the immune response and the types of Lyme bacteria involved. About 500 children with suspected Lyme di…

This study aims to better understand trisomy 8 mosaicism, a rare genetic condition where some cells have an extra copy of chromosome 8, and its link to autoinflammatory disease (TRIAD). Researchers will follow affected individuals and their healthy relatives over time, collecting…

This study looks at cases of severe Lyme disease (disseminated borreliosis) in patients who have received anti-CD20 therapy, a type of immune-suppressing treatment. Researchers want to describe the symptoms, severity, and progression of the infection in these patients. The study …

This study looks back at cases of recurrent borreliosis, a bacterial infection spread by ticks or lice, diagnosed in France between 2013 and 2025. Researchers will describe the symptoms, where patients got infected, which Borrelia species caused the illness, and how it was diagno…