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Pertussis (Whooping Cough)

Florida Health

Disease Control

December Key Points

91 Cases
508 cases in the past
6 months
No new outbreak
<1 year olds had
highest 6 month incidence


The number of pertussis cases reported in December increased 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 December 2024, 91 cases of pertussis were reported, which is above the previous 5-year average.

In December 2024, 91 pertussis cases were reported in 32 counties, outlined in black in the map below. From October 2024 through December 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 December are: Alachua Brevard Broward Clay Collier Miami-Dade Duval Escambia Flagler Hendry Hernando Hillsborough Lake Lee Madison Marion Martin Monroe Nassau Orange Palm Beach Pasco Pinellas Polk Putnam St. Johns St. Lucie Santa Rosa Sarasota Seminole Suwannee Volusia Counties with a rate of 0.02-1.05 per 100,000 population are: Charlotte Marion St. Lucie Miami-Dade St. Johns Orange Santa Rosa Hillsborough Pasco Brevard Palm Beach Manatee Broward Putnam Duval Columbia Alachua Polk Hernando Lake Flagler Volusia Escambia Collier Lee Suwannee Sarasota Pinellas Clay Okaloosa Martin Counties with a rate of 1.06-3.75 per 100,000 population are: Seminole Nassau Taylor Monroe Counties with a rate of 3.76-43.32 per 100,000 population

In 2024, 708 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 December 2024, 0 pertussis cases were outbreak-associated. In the past 6 months, there was an average of 26 household-associated cases, an average of 5 outbreak-associated cases, and an average of 69 total cases. From July 2023 to December 2023, there was an average of 1 household-associated case, an average of 0 outbreak-associated cases and an average of 8 total cases. For most pertussis cases, exposure to other known cases is not identified and are not able to be linked to outbreaks.

PertussisOutbreaks.PNG: 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 July 2024 - December 2024 and July 2024 - December 2024. There was an average of 26 household-associated cases and 5 outbreak-associated case between July 2024 - December 2024 and an average of 1 household-associated case between July 2023 and December 2023.

  • RESOURCES

 

Laboratory Testing Results