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Mumps in Florida

Florida Health

Disease Control

July Key Points

36 Cases
0 new
19+ year olds had
highest incidence
92% not up-to-date or
unknown vaccination status
A graph showing a summary of mumps cases reported by month in 2019 as compared to the previous 5-year average. In July 2019, 36 cases of mumps were reported, which is above the previous 5-year average.

The number of mumps cases reported in July increased from last month and was above the previous 5-year average.

A map showing the previous 3-month average mumps rates per 100,000 population. Counties with one or more cases reported in July are: Alachua, Broward, Miami-Dade, Hillsborough, Indian River, Lee, Monroe. Counties with a rate of 0.1-0.4 per 100,000 population are: Bay, Broward, Clay, Miami-Dade, Hillsborough, Indian River, Lee, St. Johns, Seminole. Counties with a rate of 0.5-1.3 per 100,000 population are: Monroe. Counties with a rate of 1.4-3.9 per 100,000 population are: Alachua.

The 36 mumps cases in July were reported among the 7 counties outlined in black. From May through July 2019 the average county rate varied throughout the state.

A graph showing a summary of the total number of mumps cases reported by year with an emphasis on 2019. In total for each year there have been: 1 in 2014; 10 in 2015; 16 in 2016; 74 in 2017; 56 in 2018; and 100 in 2019.

From January 1, 2019 through July 31, 2019, 100 mumps cases were reported in 15 counties.

The annual number of reported mumps cases increased in 2017 and 2018. Case counts in July 2019 are higher than those seen in July 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 July 2019 and the previous 3-month average.

In July, 22 (61%) of 36 cases were outbreak-associated and no cases were associated with transmission in households. For most mumps cases, exposure to other known cases is never identified, and they are not able to be linked to outbreaks.

No new mumps outbreaks were reported in July, but outbreak-associated cases from two ongoing outbreaks were reported. Investigations are still ongoing for an outbreak in a university setting and an outbreak in a detention facility setting.

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