(CNN) – Nearly two decades ago, the measles was declared eliminated in the United States.
But there has been an upsurge of cases, including in adults who thought they were already protected.
It’s likely that you don’t remember getting your booster shots as a kid or have lost your documentation, and depending on when you were born, you may not have been given the vaccine at all.
If you were born before the 60s, you may have never been vaccinated because it was assumed you’d be exposed to the virus and would build immunity.
The group of adults that may be at risk are Generation X, born in the late 60s, 70s and 80s.
These adults may have been vaccinated, but never built immunity mostly because of the way the vaccines were administered.
If you’re unsure of your immunity, contact your doctor.
The CDC says it’s safe to get another dose.