According to the Centers for Disease Control and Prevention, people at risk for monkeypox are 14 times more likely to get the disease if they don't get a vaccine.
The first concrete evidence that the Jynneos vaccine is providing some protection against the monkeypox virus is the preliminary data collected from 32 states.
The new data give the CDC a level of cautious optimism that the vaccine is working, according to the director.
As soon as two weeks after the shot, the data shows that a single dose of the vaccine protects against infections. The Jynneos vaccine is administered in two different ways.
Lab studies show that the immune protection is highest two weeks after the second dose, even though the data on a single dose is promising.
Walensky said that even in light of the promising data, people should still get two does of Jynneos vaccine.
Gay and bisexual men are the main spreaders of monkeypox. The virus can cause blisters that can be very painful and in some cases can lead to hospitalization.
The director of the CDC said that people who arevaccinated should avoid intimate contact with people with monkeypox and reduce behaviors that carry a higher risk of exposure to the disease.
Walensky said the CDC is waiting on real-world data about the effectiveness of the second vaccine dose when it comes to when people can resume their sexual activity.
We have data on how the vaccine works after a single dose. We don't know what happens after a second dose and how durable it is.
This is the first time that the US has used Jynneos to control a monkeypox outbreak. There isn't much data on the vaccine's effectiveness in the real world. The Jynneos vaccine was approved by the FDA in 2019.
The CDC wants to make sure people get the vaccine before they are exposed to monkeypox, rather than after a known exposure.
Gay and bisexual men and people who have had more than one sex partner in the past six months are included. Sex workers can be eligible for vaccinations if their sexual partner has these risks.
The federal government wants vaccine providers to make it easier for people to get the shots, as well as reduce fears of stigmatization.
The fear of revealing sexuality and gender identity is not a barrier to vaccination.
The vaccine can be given in the shoulder or upper back, so the mark left by the shot is not visible. Some people don't want to get the shot in their arm because they think it's offensive.
More than 25,000 cases of monkeypox have been reported in the U.S., Washington D.C. and Puerto Rico. Since the beginning of the outbreak in May, there has been one confirmed death.
The number of monkeypox cases in the US has fallen in recent weeks.