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Vaccine Preventable Diseases

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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 FloridaHealthCOVID-19.gov.

June Key Points

4 Cases
0 new
outbreaks
Average of 3
contacts per case
<1 year olds had
highest incidence
25% cases not up-to-date
or unknown vaccination status
A graph showing a summary of pertussis cases reported by month in 2020 as compared to the previous 5-year average. In June 2020, 4 cases of pertussis were reported, which is below the previous 5-year average.

The number of pertussis cases reported in June decreased from 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 definition for pertussis; please see the last page for more information.

A map showing the previous 3-month average pertussis rates per 100,000 population. Counties with one or more cases reported in May are: Broward, Clay, Duval, Flagler, Lake, Martin, Orange, Palm Beach, Pasco, Pinellas, Polk, Santa Rosa, Sumter Counties with a rate of 0.1-0.1 per 100,000 population are: Brevard, Broward, Miami-Dade, Duval, Lee, Marion, Palm Beach, Pinellas, St. Johns, St. Lucie, Sarasota, Seminole, Volusia Counties with a rate of 0.2-0.6 per 100,000 population are: Citrus, Clay, Escambia, Flagler, Highlands, Hillsborough, Lake, Martin, Orange, Pasco, Polk, Putnam, Santa Rosa, Sumter Counties with a rate of 0.7-2.0 per 100,000 population are: Baker, Columbia, Dixie, Hendry, Levy

The 4 pertussis cases in June were reported among the 4 counties outlined in black. From April 2020 through June 2020 the average county rate has varied throughout the state.

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: 713 in 2014; 341 in 2015; 335 in 2016; 358 in 2017; 326 in 2018; 393 in 2019; and 196 in 2020.

From January 1, 2020 through June 30, 2020, 196 pertussis cases were reported in 38 counties.

Since 2015, the number of pertussis cases reported annually remained stable. In 2020, case counts were slightly higher than those seen during non-peak years at this time, as indicated by the white bars in the graph.

A graph showing a bar graph of total cases compared to household associated cases and outbreak associated cases for June 2020 and the previous 3-month average.

In June, none of 4 total pertussis cases were associated with transmission within households or were outbreak-associated. For most pertussis cases, exposure to other known cases is never identified, and they are not able to be linked to outbreaks

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