New mpox strain confirmed in New York for the first time

The New York State Department of Health issued a health advisory this week about the emergence of a new strain of mpox (formerly monkeypox). The first case of mpox clade Ib in New York State was confirmed in a symptomatic individual who had recently traveled from Africa.

2025-02-14 14:44:34 - VI News Staff

The present risk to the public remains low, the department noted, and there are no additional known community cases of this strain in New York State currently.

State Health Commissioner Dr. James McDonald shared that the infected individual is under the care of a physician and isolated “until the full resolution of symptoms.”

“There is no known local transmission of mpox clade Ib in the community where the individual lives or anywhere within New York State,” he said in a statement.

McDonald added that the JYNNEOS vaccine, which is a two-dose preventative vaccine series for mpox, is “expected to be effective” against this new strain.

“[It is] available for individuals at risk with the standing order I signed last year,” he noted. “There is no immediate risk to the general public.”

The health department added in its advisory that individuals should inquire with their local pharmacy or healthcare provider about vaccine availability as they continue to “monitor and maintain the situation.”

Mpox is “rarely fatal,” according to the department, but can be dangerous for people with immunocompromising conditions, as well as older adults, young children and pregnant women.


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