Chikungunya Case Investigated on Long Island

In August 2025, the New York State Health Department reported a small number of travel-associated Chikungunya Fever cases diagnosed in international travelers to countries such as France, with no identified local mosquito-borne transmission. 

New York advised healthcare providers on procedures for testing and reporting suspected cases of Chikungunya.

In related news, a Long Island resident recently tested positive for Chikungunya, marking what could be the first locally acquired case ever reported in New York state.

NY residents are encouraged to take preventive measures, such as avoiding mosquito bites, and to consult their healthcare provider before traveling to areas with a high risk of mosquito-borne diseases, which include dengue, malaria, and Zika.

On September 25, 2025, local media reported that Aedes aegypti mosquitoes, the primary ones responsible for Chikungunya virus transmission, are not naturally found in New York.

Currently, approved Chikungunya vaccination services are offered at travel clinics and pharmacies in New York.