This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 22 - 28 November 2025 and includes updates on respiratory virus epidemiology in the EU/EEA, chikungunya, West Nile virus, Marburg virus disease, Influenza A(H5N2), HIV/AIDS surveillance, Ebola, Middle East Respiratory virus (MERS), shigellosis Cabo Verde.
On 3 December 2025, the French Ministry of Health reported two imported human Middle East respiratory syndrome (MERS) cases with travel history to the Arabian Peninsula. The two affected individuals participated in the same group trip. No secondary cases have been identified so far. French authorities are implementing response measures and monitoring the situation.
Respiratory viruses are on the rise across the EU/EEA: influenza activity is increasing rapidly and circulating widely, RSV is slowly increasing, while SARS-CoV-2 circulation continues to decrease.
