Overview

• England logged 73 travel‑associated cases in January–June 2025, nearly triple the 27 in the same period of 2024, with most linked to trips to Sri Lanka, India and Mauritius.
• A Eurosurveillance report describes France’s earliest chikungunya season on record, with the first local case showing symptoms on 27 May and 10 clusters totaling 27 cases across five regions driven by Aedes albopictus.
• By 10 July, France had notified 1,911 imported infections, 89% linked to Réunion, and more than 86% of imported patients were viraemic while in mainland France.
• Containment in France required door‑to‑door case finding and targeted vector control, with investigators warning that rising case loads could strain surveillance capacity.
• Global activity in 2025 totals about 240,000 cases and 90 deaths across 16 territories, while UK‑approved vaccines IXCHIQ (ages 18–59) and Vimkunya (ages 12+) are available for some travellers.