Doctors are recommending some people get second vaccination for measles

We told you this week, the measles outbreak is the worst in decades.

Now, we're breaking down which age group may not be fully protected.

Thursday afternoon health officials are on alert for any more measles cases.

The Centers for Disease Control in Atlanta says the country has more measles patients this year than in 25 years and with all the focus on children, there’s some confusion about adults.

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We met Brad Resler Thursday at the hospital. He rolled up his sleeve for something he didn't think he'd need again: a measles vaccine.

"It's crazy, it's crazy this is happening this day and age," he said.

After hearing about global outbreaks, a blood test showed he wasn't protected so he decided to get another MMR shot.

"I'm traveling and we’re gonna be exposed to a lot of people. Measles is deadly," he said.

Dr. Saju Mathew says measles is very contagious and can be serious.

"There are some that die from measles especially our extremes of populations elderly and the very young," he said.

You may think you got the measles shot when you were a kid so you’re OK but here’s the thing: If you are in your 50s or 60s even some people as young as 30, you might not be fully protected.

The CDC says people born before 1957 are likely immune because they were probably already exposed.

If you were born 1957- 1967, you should check for protection because of issues with early versions of the shots. And people born and all the way up to 1989, should check for measles protection if you’re at high risk.

Health officials suggest you try to find your medical records or get a blood test.

"One hundered percent, I encourage everyone to know their status and get the vaccine if they’re not immunized," Matthew said.

Cox Media Group