New York Confirms Locally Acquired Case of CHIKV

October 22, 2025

The New York State Department of Health recently confirmed a case of locally acquired chikungunya virus (CHIKV) in a Long Island woman. The case is the first instance of locally acquired CHIKV in New York and the first case in the U.S. since 2019. Officials reaffirmed that the overall risk of local transmission remains low.

AABB’s emerging infectious diseases fact sheets contain additional information about CHIKV and other infectious diseases relevant to donor and patient health and safety.