The response is organized. The United States is preparing to vaccinate people who have been in close contact with monkeypox patients, as the country, which now has five probable or confirmed cases, expects to see their number increase .

“We want to maximize the distribution of vaccines to those who we know would benefit”said Monday, May 23 Jennifer McQuiston, manager at the Centers for Disease Prevention and Control (CDC). “That is, those who have been in contact with a known monkeypox patient, such as caregivers, very close personal contacts, particularly those at risk of developing a severe case of the disease.”she said at a press conference.

One case has been confirmed in Massachusetts and four others are about to be analyzed but considered very probable (one in New York, one in Florida, two in Utah). All are men who have traveled outside the United States.

Two possible vaccines

Most infected people recover spontaneously within two to four weeks, without specific treatment. But the American authorities are taking all possible precautions.

Two smallpox vaccines authorized by the United States Food and Drug Administration (FDA) can be used. The first, ACAM2000, is a live attenuated vaccine, not recommended for immunocompromised people. The United States has 100 million doses. Due to side effects “potentially significant”its large-scale distribution would require “a real talk”said Jennifer McQuiston.

The second, Jynneos, is also a live but non-replicating vaccine, and therefore considered safer. The United States only has 1,000 doses, but that number should “increase rapidly in the coming weeks”according to the manager. According to her, data show that these two vaccines can help prevent the development of the disease if they are administered quickly after exposure.


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