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Pertussis (Whooping Cough)

Florida Health

Disease Control

November Key Points

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


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

PertussisMonthly.PNG: A graph showing a summary of pertussis cases reported by month in 2024 as compared to the previous 5-year average. In November 2024, 106 cases of pertussis were reported, which is above the previous 5-year average.

In November 2024, 106 Pertussis cases were reported in 27 counties, outlined in black in the map below. From July 2024 through November 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 November are: Alachua Brevard Broward Charlotte Clay Columbia Miami-Dade Duval Escambia Hillsborough Lake Lee Madison Manatee Marion Monroe Okaloosa Orange Palm Beach Pasco Pinellas St. Lucie Seminole Volusia Counties with a rate of 0.08-0.38 per 100,000 population are: Marion St. Johns Leon Santa Rosa Bay Miami-Dade Martin Alachua Flagler Broward Hillsborough Pasco Charlotte Volusia Orange Duval St. Lucie Counties with a rate of 0.39-1.59 per 100,000 population are: Manatee Palm Beach Polk Lake Columbia Lee Escambia Brevard Pinellas Collier Monroe Hendry Clay Sarasota Seminole Nassau Okaloosa Counties with a rate of 1.6-36.43 per 100,000 population are: Taylor Madison

In 2024, 617 pertussis cases were reported. These case counts are trending towards levels reported pre-pandemic in 2019. 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 617 in 2024.

In November 2024, 16 pertussis cases were outbreak-associated. In the past 6 months, there was an average of 21 household-associated cases, and an average of 5 outbreak-associated cases and an average of 69 total cases. From June 2023 to November 2023, there was an average of 1 household-associated case, an average of 0 outbreak-associated cases and an average of 5 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 June 2024 - November 2024 and June 2024 - November 2024. There was an average of 21 household-associated cases and 5 outbreak-associated case between June 2024 - November 2024 and an average of 1 household-associated case between June 2023 and November 2023.

  • RESOURCES

 

Laboratory Testing Results