Overview

• Bavaria recorded 24 chikungunya infections by August 4, 2025, up from five during the same period in 2024, with all cases acquired abroad.
• Established Aedes albopictus populations, including overwintering pockets in Fürth and Würzburg, heighten the threat of domestic virus transmission.
• Health authorities note that France and Italy have already confirmed local chikungunya spread by tiger mosquitoes.
• Two chikungunya vaccines have been approved and STIKO recommends immunization for travellers aged 12 and above to affected regions.
• The Bavarian health ministry has launched mosquito monitoring and urges residents to eliminate standing water and report tiger mosquito sightings to the LGL.