New York Confirms State’s First Locally Acquired Case of Chikungunya
Confirmatory testing at the Wadsworth Center identified a locally acquired chikungunya infection in Nassau County. Health officials described current risk as very low and advised basic mosquito‑bite precautions.
What has been confirmed
New York health authorities reported a confirmed chikungunya case classified as locally acquired in Nassau County after laboratory testing at the Wadsworth Center. Details were earlier reported by the New York Times, and public updates continue via CIDRAP.
- •Case confirmed in Nassau County, Long Island; classified as locally acquired after confirmatory testing.
- •Source of exposure is not precisely known; local transmission can occur when a mosquito bites an infected traveler and then another person.
- •Aedes albopictus is present in parts of downstate New York. Aedes aegypti is not established in New York.
- •Officials describe current risk as very low during colder night temperatures.

Where was the case reported?
Nassau County • Long IslandMap © OpenStreetMap contributors • Tiles by OSM | Centered near Hempstead in Nassau County.
Context on spread: Chikungunya surge context
Context on spread: Chikungunya surge context
60‑Second Check
Q1. Can chikungunya spread directly from one person to another?
Q2. Which mosquito is established in parts of downstate NY?
Q3. What is the current risk level noted by officials?
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External Reference
This section covered the confirmed locally acquired chikungunya case in New York, common symptoms, basic precautions, an approximate Nassau County map view, and related links for background.