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Pertussis (Whooping Cough)

Florida Health

Disease Control

September Key Points

66 Cases
361 cases in the past
6 months
No new outbreaks
<1 year olds had
highest 6 month incidence


The number of pertussis cases reported in September decreased 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 September 2024, 66 cases of pertussis were reported, which is above the previous 5-year average.

In September 2024, 66 Pertussis cases were reported in 25 counties, outlined in black in the map below. From June 2024 through September 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 September are: Bay Brevard Broward Charlotte Clay Collier Miami-Dade Escambia Highlands Hillsborough Lake Lee Leon Martin Nassau Okaloosa Orange Palm Beach Pasco Pinellas Polk St. Lucie Sarasota Seminole Volusia Counties with a rate of 0.08-0.58 per 100,000 population are: Polk St. Johns Leon Manatee Hernando Duval Broward Martin Miami-Dade Osceola Lake Pinellas Palm Beach Escambia Okaloosa Hillsborough Highlands Orange Walton Clay Volusia Columbia Pasco Charlotte Brevard Seminole Sarasota Counties with a rate of 0.59-1.96 per 100,000 population are: Sarasota St. Lucie Jackson Bay Collier Lee Nassau Taylor Counties with a rate of 1.97-3.88 per 100,000 population are: Dixie DeSoto

In 2024, 416 pertussis cases were reported. Mitigation efforts used during the pandemic likely lowered transmission of pertussis.

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 266 in 2024.

In September 2024, no pertussis cases were outbreak-associated. In the past 6 months, there was an average of 17 household-associated cases, and an average of 1 outbreak-associated case and an average of 60 total cases. From April 2023 to September 2023, there was an average of 1 household-associated case, an average of 0 outbreak-associated cases and an average of 6 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 April 2024 - September 2024 and April 2024 - September 2024. There was an average of 17 household-associated cases and 1 outbreak-associated case between April 2024 - September 2024 and an average of 1 household-associated case between April 2023 and September 2023.

  • RESOURCES

 

Laboratory Testing Results