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First Local Chikungunya Case in US in Six Years

10/15/2025

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Summary

Story summary

The first locally transmitted chikungunya case in the United States in six years involves a New York resident from Nassau County with symptoms in August after travel.
The infection followed a mosquito bite, and no local mosquito pools have tested positive.
Officials say the virus is spreading in China and abroad, but domestically it remains rare.
Health Commissioner James McDonald says transmission risk is very low due to cooler temperatures.

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Story summary

The first locally transmitted chikungunya case in the United States in six years involves a New York resident from Nassau County with symptoms in August after travel.
The infection followed a mosquito bite, and no local mosquito pools have tested positive.
Officials say the virus is spreading in China and abroad, but domestically it remains rare.
Health Commissioner James McDonald says transmission risk is very low due to cooler temperatures.