370 Locally Transmitted Chikungunya Cases Confirmed in Northern Italy

Chikungunya is a viral disease transmitted to humans through infected mosquitoes. The first known outbreak occurred in 1952. In the past year, 100 countries have reported chikungunya outbreaks to the the European Center for Disease Prevention and Control (ECDC).

In Italy, the National Institute of Health has reported 419 chikungunya cases in 2025, with approximately 370 confirmed as locally transmitted, primarily in the northern region of the country.

According to ECDC's Week 44 report on October 29, 2025, the largest cluster of cases is located in Carpi, San Prospero, Soliera, Novellara, Cavezzo, Modena, Nonantola, Correggio, Novi di Modena, and Cesenatico.

In the United States, the CDC says locally acquired chikungunya cases have not been reported since 2019.

However, as of late November 2025, the CDC confirmed 19 travel-related cases in states such as Florida, several of which were linked to visitors from Cuba.

The CDC currently recommends that international travelers visiting outbreak areas speak with a travel vaccine provider about immunization options. Approved chikungunya vaccines will be available at clinics and pharmacies in November 2025.