The Washington State Department of Health increased its tally of mumps cases associated with a recent outbreak to 823 on Wednesday, marking a 29-case increase since last week's update.
The cases include both confirmed and probable infections identified by health officials since the onset of the outbreak in October 2016. While the outbreak has primarily affected King County and Spokane County, individuals from a total of 14 counties across the state have been affected.
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Mumps is a highly contagious virus. Initial symptoms — which typically persist for several days — include fever, headache, muscle aches, tiredness and loss of appetite and may be followed by painful swollen salivary glands.
To learn more about the mumps, click here.
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