Arenaviruses are a type of small virus commonly found in rodents. When a person becomes infected with an arenavirus, symptoms usually begin within 10 days.
This issue of the ECDC Communicable Disease Threats Report (CDTR) the period 28 January - 3 February 2024 and includes updates on SARS-CoV-2 variant classification, swine influenza, human cases of co-infection with seasonal influenza and avian influenza, influenza, western equine encephalitis, and an overview of respiratory virus epidemiology in the EU/EEA.