Varicella (Chickenpox) in Florida
Florida HealthDisease Control
December Key Points
unknown vaccination status
The number of varicella cases reported in December increased from last month and was slightly above the previous 5-year average. Due to robust vaccination programs, there is no longer a discernable seasonality for varicella cases in the United States.
The 76 varicella cases in December were reported among the 18 counties outlined in black. From October through December 2019 the average county rate varied throughout the state.
From January 1, 2019 through December 31, 2019, 984 varicella cases were reported in 57 counties.
The annual number of reported varicella cases decreased from 2015 to 2017. In 2019, case counts were higher than those seen in previous years.
In December, 12 (16%) of 76 total cases were associated with transmission within households and 6 (8%) cases were outbreak-associated. For most varicella cases, exposure to other known cases is never identified, and they are not able to be linked to outbreaks.
One varicella outbreak was reported in December. This outbreak was reported in a daycare in St. Lucie County and as of the end of December, consists of 6 cases.
Earlier in 2019 an outbreak was reported in a detention facility for a total of 2 outbreaks reported in 2019.
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