Pertussis (Whooping Cough)
Contact: Florida Health
April Key Points
contacts per case
or unknown vaccination status
The number of pertussis cases reported in April increased from the previous month and was below the previous 5-year average. In general, more pertussis cases are reported during the summer months.
The 29 pertussis cases in April were reported among the 16 counties outlined in black. From February through April 2019 the average county rate has varied throughout the state.
From January 1, 2019 through April 30, 2019, 108 pertussis cases were reported in 26 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. Case counts in April 2019 are similar to those seen in April of previous years, as noted by the white bar in the figure.
In April, 4 (14%) of 29 total pertussis cases were associated with transmission within households and 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 April.
So far in 2019, a total of four pertussis outbreaks have been reported in school settings.
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