Thailand: On 04 Aug 2025, Thai government officials announced that chikungunya outbreaks had been detected in five provinces in Thailand: Chiang Mai, Bueng Kan, Loei, Nong Khai, and Lamphun. Data on case counts are not provided.
Persistent heavy rainfall and flooding have led to humid conditions that promote the proliferation of Aedes aegypti and Ae. albopictus mosquitoes, the main vectors of chikungunya.
Optimal mosquito protection 24/7, also in cities (also against other mosquito-borne diseases such as Zika, dengue).
Two vaccines against chikungunya are licensed in Europe but not yet in Switzerland: Vimkunya® (virus-like particle vaccine) and Ixchiq® (live-attenuated vaccine. The Swiss Expert Committee for Travel Medicine is currently preparing a statement. The US CDC has published the recommendations, see LINK.
In case of fever:
- Ensure adequate hydration and take paracetamol products. Stronger pain killers may be necessary in case of arthropathy.
- Avoid taking medications containing acetylsalicylic acid (e.g., Aspirin®), as this can increase the risk of bleeding during certain viral infections. However, do not stop taking medications containing acetylsalicylic acid if it is already part of your regular treatment for an underlying condition.