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Pertussis (Whooping Cough)

Florida Health

Disease Control

May Key Points

46 Cases
164 cases in the past
6 months
One new outbreak
<1 year olds had
highest 6 month incidence


The number of pertussis cases reported in May remained stable from the previous month, and was above the previous 5-year average.

A graph showing a summary of pertussis cases reported by month in 2024 as compared to the previous 5-year average. In May 2024, 46 cases of pertussis were reported, which is above the previous 5-year average.

In May 2024, 46 Pertussis cases were reported in 17 counties, outlined in black in the map below. From March 2024 through May 2024 the average county rates varied throughout the state.

A map showing the previous 3-month average pertussis rates per 100,000 population. Counties with one or more cases reported in May are: Brevard Broward Miami-Dade Duval Hernando Hillsborough Lee Marion Nassau Orange Palm Beach Pasco Pinellas St. Lucie Santa Rosa Seminole Walton Counties with a rate of 0.06-0.2 per 100,000 population are: Volusia Broward Polk Marion Duval Orange Alachua Palm Beach Pinellas Manatee Pasco Santa Rosa Charlotte St. Lucie Counties with a rate of 0.21-0.78 per 100,000 population are: Miami-Dade Hillsborough Brevard St. Johns Lee Hernando Collier Martin Lake Seminole Leon Counties with a rate of 0.79-1.33 per 100,000 population are: Walton Nassau.

In 2024, 147 pertussis cases were reported.

A graph showing a summary of the total number of pertussis cases reported by year with an emphasis on 2019. In total for each year there have been: 391 in 2019; 216 in 2020; 55 in 2021, 60 in 2022, 85 in 2023, and 147 in 2024.

In May 2024, two pertussis cases were outbreak-associated. In the past 6 months, there was an average of 6 household-associated cases, and an average of 2 outbreak-associated cases and an average of 28 total cases. From December 2022 to May 2023, there was an average of 1 household-associated cases, an average of 0 outbreak-associated cases and an average of 7 total cases. For most pertussis cases, exposure to other known cases is not identified and are not able to be linked to outbreaks.

A graph showing a bar graph of the average number of total cases compared to the average number of household-associated cases and the average number of outbreak-associated cases for December 2023 - May 2024 and December 2023 - May 2024. There was an average of 6 household-associated cases and 2 outbreak-associated cases between November 2023 - May 2024 and an average of 1 household-associated case between November 2023 and May 2024.

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