Chicken Pox — United States
State health officials say they are seeing a large spike in the number of chickenpox [varicella] cases so far this year [2016], mostly in people who were not vaccinated.
There were about 239 cases statewide through April [2016], the Michigan Department of Health and Human Services [MDHHS] said in a Wednesday release, which works out to an about 57 percent increase in the number of cases over the same time period last year [2015].
Chickenpox is highly contagious, the health department
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