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Pertussis (Whooping Cough)

Florida Health

Disease Control

The COVID-19 pandemic is affecting health care seeking behavior, which may be impacting the diagnosis and reporting of pertussis cases that are shown in this report. For more information on the COVID-19 pandemic in Florida, please visit

March Key Points

4 Cases in
21 cases in the past
6 months
No outbreaks have
been reported in 2021
<1 year olds had
highest incidence

In 2021, 11 pertussis cases were reported in 7 counties. Between October 2020 and March 2021, 20 cases were reported, an 87% decrease compared to October 2018 to March 2019 (n=152 cases).

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: 341 in 2015; 335 in 2016; 358 in 2017; 326 in 2018; 392 in 2019; 215 in 2020, and 11 in 2021.

The number of pertussis cases reported in March is similar to the previous month, and was below the previous 5-year average. Elevated case counts in early 2020 may be due to a change in the case denition for pertussis; please see the last page for more information.

: A graph showing a summary of pertussis cases reported by month in 2020 as compared to the previous 5-year average. In March 2021, 4 case of pertussis was reported, which is below the previous 5-year average.

No outbreak-associated or household-associated cases have been identied in 2021. For most pertussis cases, exposure to other known cases is not identied 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 September 2020 to March 2021 and September 2018 to March 2019. There were no household-associated cases between October 2020 to March 2021 and no outbreak-associated cases have been identified in 2021.

*Note: This page contains materials in the Portable Document Format (PDF). The free Acrobat Reader may be required to view these files.