Key Points Epidemiological Surveillance In 2023–2024, 283 cases of arbovirus diseases were reported in the region 86 cases were reported in 2023 and 197 in 2024 All were cases of...

Key Points A total of 176 confirmed cases of chikungunya were recorded between weeks 10 and 19 of 2025, including 101 locally acquired cases, 32 imported cases, and 43 cases of unknown...

Every year, May 1 marks the start of an enhanced surveillance period for arboviral diseases—such as dengue, chikungunya, and Zika—in metropolitan France, as well as the implementation of...

Key Points In 2024 in mainland France, 4,683 imported cases of dengue, 34 imported cases of chikungunya, 8 imported cases of Zika, and one dengue-chikungunya co-infection were reported...

Key Points A measurable decline in monitoring indicators in private practice as well as in various emergency departments since Week 17. Activity continues in primary care (10%) and...

Key Points A total of 116 confirmed cases of chikungunya were recorded between S10 and S18-2025, including 57 locally acquired cases, 29 imported cases, and 30 cases of unknown status...

Key Points Number of imported cases documented during enhanced surveillance in 2024 568 Dengue 12 Chikungunya 3 Zika 1 Co-infection (dengue + chikungunya) First case of locally...

Key Points Surveillance indicators in emergency departments and primary care settings were beginning to decline. This trend is expected to be confirmed in the coming weeks due to a...

Key Points The enhanced surveillance system for dengue, chikungunya, and Zika was activated from May 1 to November 30, the period of activity for the tiger mosquito (Ae. albopictus) in...

Key Points The chikungunya epidemic continues at a high level of transmission. The number of consultations for clinically suggestive chikungunya has stabilized at a high level in...