The number of mumps cases reported to the Centers for Disease Control and Prevention (CDC) from Jan.1 through June 6 has topped the total mumps cases reported in all of the previous two years, according the the latest published data.


For the first 5+ months of 2016, federal health officials have reported 1,272 mumps cases. This compares to 1,057 reported during  all of 2015 and 1,223 reported for all of 2014. This is the highest number reported since 2010, and the data for the year is not even half over.

As of June 6, 2016, 33 states (AL, AZ, CA, CO, CT, FL, GA, HI, ID, IL, IN, IA, KS, KY, ME, MA, MI, MN, MT, NE, NH, NJ, NY, NYC, NC, ND, OH, OR, PA, SC, TN, TX, VA, & WI) in the U.S. reported mumps infections to CDC and four states, Iowa, Indiana, Illinois and Massachusetts have recorded more than 100 cases each.

According to the CDC, symptoms for mumps include fever, headache, muscle aches, tiredness, loss of appetite, and swollen and tender salivary glands under the ears on one or both sides. Mumps is spread from direct and indirect contact with an infected person’s respiratory droplets, which can be transmitted by sneezing and coughing. People with mumps can spread their infections for up to two days before and five days after the onset of symptoms. Anyone with symptoms is highly encouraged to stay home and avoid others to prevent the further spread of illness and to seek care as soon as possible.

Mumps is caused by a virus, so antibiotics are not indicated. Symptoms typically appear 16-18 days after infection but can range from 12-25 days. Generally, mumps is a mild illness, and some people may not have any symptoms. While complications and more serious issues can result from a mumps infection, they are generally rare, with a 1 percent to 3 percent complication rate.

The measles-mumps-rubella vaccine (MMR) prevents most, but not all, cases of mumps and complications caused by the disease. Two doses of the vaccine are 88% (range: 66 to 95%) effective at protecting against mumps; one dose is 78% (range: 49% to 92%) effective. Outbreaks can still occur in highly vaccinated U.S. communities, particularly in close-contact settings.