Chikungunya likely entered Réunion Island once then spread through human movement, study suggests

Between August 2024 and June 2025, Réunion Island experienced a monolithic chikungunya epidemic, with much than 54,000 confirmed cases and 43 deaths. It was the island's 2nd large chikungunya microorganism outbreak, aft the 2005–2006 epidemic, which affected astir a 3rd of the island's population.