Mumps Cases Surge in US as Outbreak at University of Missouri Climbs to 31

Mumps outbreaks across the U.S. have sickened nearly 3,000 people, close to three times as many as in 2015, according to the U.S. Centers for Disease Control and Prevention. At the University of Missouri, for example, a current outbreak has so far led to 31 confirmed cases of the disease and 27 other suspected cases. Many other colleges and universities have grappled with mumps outbreaks this year, including Harvard, which in April reported having at least 40 confirmed cases. The number of mumps cases in the U.S. can vary widely from year to year, ranging from a few hundred to a few thousand. But 2016 has seen a particularly large rise, according to the CDC. More than 2,940 cases have been confirmed this year, up from the preliminary estimate of 1,057 for 2015. This year has also already surpassed the previous recent high 2,612 mumps cases in 2010. After 2010, the...

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