Head-to-head comparisons of medication uses, side effects, warnings, and more.
Acam2000
Jynneos
Acam2000
Jynneos
Summary of ACAM2000 vs. Jynneos
Summary for Vaccine
Prescription only
ACAM2000 is a live vaccine that's used to prevent smallpox and mpox. It's FDA approved for certain people who are at high risk of being exposed to these viruses. The vaccine is administered as a single dose using a special method where a healthcare professional makes a few small pricks on your skin. A small blister will form at the spot where it was given, showing that the vaccine is working. Common side effects can include redness or pain at the injection site, headache, and tiredness.
Summary for Vaccine
Prescription only
Jynneos is a vaccine that helps lower your risk of getting smallpox and monkeypox infections. This vaccine is only approved by the FDA for adults 18 years and older who are at high risk for these infections. If you're looking to find this vaccine, use our monkeypox vaccine finder.