NEW YORK — New York City has confirmed a travel-related case of mpox clade I, the first time this strain has been detected in the city. The New York City Health Department issued a health advisory to health care providers on Friday after confirming the case. Officials say the person who tested positive recently traveled internationally, and they are stressing that the overall risk to New Yorkers remains low.
What NYC confirmed and what officials say now
The New York City Health Department says no additional mpox clade I cases are known in the five boroughs at this time, and there is no known local transmission. NYC Health Commissioner Dr. Alister Martin said, “There is no known local transmission of mpox clade I in New York City and the risk remains low for New Yorkers. ”
Nationally, the U. S. Centers for Disease Control and Prevention (CDC) has said that since November 2024 there have been 11 cases of this more severe strain across the country. The CDC says those cases were in people who had recently traveled to areas associated with an outbreak in Central and Eastern Africa, or who were linked to people who had traveled from those areas. The CDC has stated that the risk of clade I monkeypox to the general public in the United States remains low.
Immediate guidance on vaccination and exposure
City health officials say vaccination can reduce the risk of getting mpox and can help lessen symptoms. People at risk are encouraged to receive the two-dose JYNNEOS vaccine series if they have not already done so.
The Health Department says the second dose should be administered at least 28 days after the first dose. Officials also state that people who previously had mpox do not need to be vaccinated.
The department adds that people who have had close contact with someone who may have mpox should get vaccinated as soon as possible and within 14 days of exposure.
Reactions from health authorities and what providers are being told
The advisory to health care providers signals a heightened emphasis on clinical awareness as the city tracks the situation. The Health Department says health officials will continue monitoring for additional cases and are urging health care providers to remain alert for symptoms.
At the federal level, the CDC’s current position is that the risk remains low for the general public in the United States, even as clade I cases have been identified among people connected to international travel tied to the outbreak region in Central and Eastern Africa.
Quick context: why this case matters
This is the first time mpox clade I has been detected in New York City, and it has been described as a more severe strain. The confirmed NYC case is travel-related, and officials say they have not identified local transmission.
What’s next
New York City health officials say they will keep monitoring for additional cases and continue directing health care providers to remain alert. For now, the city’s message is focused on surveillance and vaccination guidance—especially for people at risk—while maintaining that the current risk remains low. As this investigation continues, the Health Department’s next steps will center on whether any additional mpox clade I cases emerge in the five boroughs and whether evidence of local spread appears.
