Pertussis (Whooping Cough)
Florida HealthDisease Control
December Key Points
contacts per case
or unknown vaccination status
The number of pertussis cases reported in December increased from the previous month and was above the previous 5-year average. In general, more pertussis cases are reported during the summer months.
The 37 pertussis cases in November were reported among the 16 counties outlined in black. From October through December 2019 the average county rate has varied throughout the state.
From January 1, 2019 through December 31, 2019, 392 pertussis cases were reported in 42 counties.
Since 2015, the number of pertussis cases reported annually remained stable. Pertussis is cyclic in nature, with peaks in disease every 3–5 years. Pertussis cases last peaked between 2013 and 2014. In 2019, case counts were slightly higher than those seen during non-peak years.
In December, 11 (30%) of 37 total pertussis cases were associated with transmission within households no cases were outbreak-associated. For most pertussis cases, exposure to other known cases is never identified, and they are not able to be linked to outbreaks.
No pertussis outbreaks were reported in December.
So far in 2019, a total of two pertussis outbreaks have been reported, both in school settings.
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