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Varicella (Chickenpox)

Contact: Florida Health

April Key Points

85 Cases
0 outbreaks
<1 year olds had
highest incidence
69% not up-to-date or
unknown vaccination status
This image contains a summary of varicella cases reported by month in 2018 as compared to the previous 5-year average. In April 2019, 85 cases of varicella were reported, which is above the previous 5-year average.

The number of varicella cases reported in April 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.

This map shows the previous 3-month average varicella rates per 100,000 population. Counties with one or more cases reported in April are: Brevard, Broward, Citrus, Collier, Miami-Dade, Duval, Escambia, Hillsborough, Indian River, Lake, Lee, Manatee, Monroe, Nassau, Okaloosa, Orange, Osceola, Palm Beach, Pinellas, Polk, St. Johns, St. Lucie, Taylor, Volusia, Wakulla  Counties with a rate of 0.1-0.4 per 100,000 population are: Alachua, Brevard, Citrus, Collier, Miami-Dade, Hillsborough, Indian River, Manatee, Marion, Nassau, Palm Beach, Pasco, Pinellas, Polk, St. Lucie, Santa Rosa, Sumter, Volusia  Counties with a rate of 0.5-1.5 per 100,000 population are:  Bradford, Broward, Duval, Escambia, Hardee, Lake, Lee, Monroe, Okaloosa, Okeechobee, Orange, Osceola, St. Johns, Seminole, Taylor, Wakulla  Counties with a rate of 1.6-7.5 per 100,000 population are: Baker, Liberty, Union

The 85 varicella cases in April were reported among the 25 counties outlined in black. From February through April 2019 the average county rate varied throughout the state.

This image contains a summary of the total number of varicella cases reported from 2013 through 2019. In total for each year there have been: 567 in 2014; 741 in 2015; 733 in 2016; 656 in 2017; 852 in 2018; and 328 in 2019.

From January 1, 2019 through April 30, 2019, 328 varicella cases were reported in 43 counties.

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

This image contains a bar graph of total cases compared to household associated cases and outbreak associated cases for April 2019 and the previous 3-month average.

In April, 5 (6%) of 85 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 April.

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

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