What’s happening
Because the US outbreak of monkeypox is so new, there’s no data yet on exactly how effective the vaccines will be, according to the CDC. Effectiveness of Jynneos against monkeypox is supported by animal studies, the agency says. And though it won’t be used in most cases, ACAM2000 is closely related to Dryvax, the vaccine that helped get rid of smallpox. Effectiveness of ACAM2000 is supported by animal studies as well as human clinical trials.
Why it matters
While ACAM2000 doesn’t cause smallpox, it contains live vaccina virus, which isn’t suitable for everyone. It could be unsafe for immunocompromised people, pregnant folks and those with certain heart or skin diseases.
What it means for you
Monkeypox cases are increasing in the US, and without signs of stopping. About 2,900 cases have been confirmed throughout the United States and Puerto Rico. The US Department of Health and Human Services announced Thursday that it’s delivered more than 191,000 vaccine doses to state and city health departments.
While it’s not known how likely it is you’ll get monkeypox after getting vaccinated, you should still self-isolate if you develop symptoms of monkeypox, such as a rash, the CDC says. For the vaccine to be most effective post-exposure, the vaccine should be given four days after an exposure, according to the CDC. If given between four and 14 days post-exposure, it may not prevent infection, but is expected to reduce the symptoms of the disease, the agency says.
The information contained in this article is for educational and informational purposes only and is not intended as health or medical advice. Always consult a physician or other qualified health provider regarding any questions you may have about a medical condition or health objectives.
If you’re concerned about monkeypox or your risk for exposure, contact your doctor or local health clinic. Jynneos should also be prioritized for people who are at higher risk of getting severely sick, the CDC says, including people who are immunocompromised.
Most people don’t need the monkeypox vaccine right now. But if you’ve had contact with someone who has monkeypox, or you’re in a community with higher spread, you might be eligible.
Here’s everything we know about monkeypox vaccination in the US. Also, read more about everything we know about monkeypox, including symptoms and how it spreads.
Vaccines are being offered to people at higher risk of the disease, but vaccine doses are in limited supply.