The Centers for Disease Control and Prevention says over one-thousand people in the U.S. have been diagnosed with mumps this year. Recently, players on five different NHL teams have been affected. Doctor Camille [[ kah-MEAL ]] Sabella of the Cleveland Clinic says you could still be at risk of getting mumps even if you've been fully vaccinated.

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Dr. Sabella adds you can always get a booster for mumps, even as an adult.

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The disease often starts with fever, fatigue and aches, followed by swelling of the salivary glands. The CDC says a crowded environment is a major contributing factor to outbreaks, which can happen at any time of the year.