The US CDC has updated the areas at risk for chikungunya. As of 13 Jan 2026, there is a chikungunya travel health notice for outbreaks in (red = new compared to last update 16 Dec 2025):
Countries considered to have an elevated risk for chikungunya include:
In addition to optimal mosquito bite prevention, the Swiss ECTM recommendation include:
Chikungunya vaccination is recommended for:
Chikungunya vaccination may be considered for:
Of note:
Measles spread quickly and can be dangerous - protection is simple: get vaccinated!
Swiss recommendations: All persons born after 1963 who have no documented protection against the infection (antibodies or 2 documented vaccinations) should be vaccinated twice with MMR vaccine at one month interval. In the event of an epidemic in the region or contact with a measles case, vaccination is recommended from the age of 6 months.
One confirmed mpox case was detected in Mayotte on 08 Jan 2026 in a traveler arriving from Madagascar, where an mpox outbreak is ongoing.
In response, neighboring countries have implemented control measures:
Since 16 December 2025, Madagascar has reported approximately 100 suspected mpox cases and around 10 confirmed cases, with the Mahajanga coastal region in northwestern Madagascar remaining the outbreak epicenter.
Risk very low for general populations but moderate for at risk groups.
According to local media citing regional health director Dr. Seynabou Ndiaye, the Rift Valley fever (RVF) outbreak in Senegal’s Saint-Louis Region was declared over on 10 January 2026, with no patients remaining under surveillance.
The outbreak, declared on 21 September 2025, resulted in 360 confirmed cases from 5,196 tested samples, including 21 deaths (case fatality rate: ~5.8%). Nationwide, more than 500 confirmed human cases were reported by December 2025.
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