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Vaccine Preventable Diseases


Varicella (Chickenpox) in Florida

Contact: Florida Health


June Key Points

86 Cases
0 new
outbreaks
<1 year olds had
highest incidence
56% not up-to-date or
unknown vaccination status
A graph showing a summary of varicella cases reported by month in 2019 as compared to the previous 5-year average. In June 2019, 86 cases of varicella were reported, which is above the previous 5-year average.

The number of varicella cases reported in June decreased from last month and was above previous 5-year average. In general, more varicella cases are reported during the late winter and summer months.

A map showing the previous 3-month average varicella rates per 100,000 population. Counties with one or more cases reported in June are: Brevard, Broward, Collier, Columbia, Miami-Dade, Duval, Escambia, Gadsden, Hillsborough, Jackson, Lake, Lee, Marion, Martin, Nassau, Orange, Osceola, Palm Beach, Pasco, Pinellas, Polk, Santa Rosa, Sarasota, Seminole, Sumter, Volusia, Washington. Counties with a rate of 0.1-0.4 per 100,000 population are: Alachua, Brevard, Citrus, Collier, Miami-Dade, Duval, Hillsborough, Manatee, Marion, Martin, Okaloosa, Pasco, Pinellas, St. Johns, St. Lucie, Santa Rosa, Sarasota, Seminole. Counties with a rate of 0.5-1.6 per 100,000 population are: Volusia, Sumter, Polk, Palm Beach, Orange, Escambia, Indian River, Jackson, Lee, Gadsden, Broward, Lake Monroe, Osceola, DeSoto, Columbia, Nassau, Holmes. Counties with a rate of 1.7-3.8 per 100,000 population are: Gulf, Washington, Taylor, Gilchrist.

The 86 varicella cases in May were reported among the 27 counties outlined in black. From April through June 2019 the average county rate varied throughout the state.

A graph showing a summary of the total number of varicella cases reported by year with an emphasis on 2019. In total for each year there have been: 567 in 2014; 741 in 2015; 733 in 2016; 656 in 2017; 853 in 2018; and 510 in 2019.

From January 1, 2019 through June 30, 2019, 510 varicella cases were reported in 51 counties.

The annual number of reported varicella cases decreased from 2015 to 2017. Case counts in June 2019 are similar to those seen in June of previous years, as noted by the white bar in the figure.

A graph showing a bar graph of total cases compared to household associated cases and outbreak associated cases for June 2019 and the previous 3-month average.

In June, 30 (35%) of 86 total cases were associated with transmission within households and no 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.

No varicella outbreaks were reported in June.

So far in 2019, no varicella outbreaks have been reported.

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