Widespread circulation of Crimean-Congo haemorrhagic fever virus in ticks, Corsica (France), 2024.

ABSTRACT: Crimean-Congo Haemorrhagic Fever is a severe tick-borne viral disease with a high fatality rate. This study aimed to advance the understanding of CCHF virus (CCHFV) in terms of geographical spread and genotypic characterization by investigating its detection in ticks collected from cattle, one year after the first detection of CCHFV in Corsica. From 2024 to 2025, we collected ticks from cattle, with standardised sampling occurring twice per month. Ticks were screened for CCHFV RNA by RTq-PCR. Genome sequencing and phylogenetic analyses were performed. Blood samples from a subset of these cattle were tested for CCHFV antibodies using a commercial enzyme-linked immunosorbent (ELISA) test. Among the 13,577 ticks collected, CCHFV RNA was detected in 61 pools (1.6%) out of the 3803 tested. We i

SUBMITTER: Gasparine M 

PROVIDER: S-EPMC12860254 | biostudies-literature | 2026 Jun

REPOSITORIES: biostudies-literature