Study of the Clinical, Microbiological and Epidemiological Characteristics of Recurrent Imported Borreliosis Confirmed by the CNR Borrelia

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