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Vaccine Preventable Diseases (VPD)

Florida Health

Disease Control

The COVID-19 pandemic is affecting health care seeking behavior, which may be impacting the diagnosis and reporting of hepatitis A, pertussis, and varicella cases that are shown in this report. For more information on the COVID-19 pandemic in Florida, please visit FloridaHealthCOCVID19.gov.




Vaccine Preventable Disease Surveillance Report September 2021

Hepatitis A

A graph showing Hepatitis A activity has fluctuated each month from Ocotber 2020 – October 2021. In October 9 cases were reported.
  • Hepatitis A activity was stable from last month and was below the previous 5-year average.
  • 9 cases were reported in October.
  • 67% of cases were not up-to-date on hepatitis A vaccinations in October.
  • The Hepatitis outbreak in Florida was declared over as of August 31, 2021

Pertussis

A graph showing Pertussis activity has fluctuated each month from October 2020 – October 2021. In October 5 cases were reported.
  • Pertussis activity increased from last month and was below the previous 5-year average.
  • 5 cases were reported in September.
  • Compared to May 2019 - October 2019, there was an 90% decrease in reported cases in the past 6 months.
  • In the past 6 months, the average incidence rate for <1 year old was 19 times lower compared to May 2019 - October 2019.

Varicella

A graph showing Varicella activity has fluctuated each month from November 2020 – October 2021. In October 29 cases were reported.
  • Varicella activity increased from last month and was above the previous 5-year average.
  • 49 cases were reported in September.
  • Incidence was highest among infants <1 year old.
  • 45% of cases were not up to date on varicella vaccinations or had unknown vaccination status.

For all vaccine-preventable diseases, timely and complete vaccination is the best way to prevent infection. Although vaccinated individuals can still become infected with diseases like pertussis or varicella, in general, those who have received at least 1 dose of vaccine have less severe outcomes than those who have never been vaccinated for the disease.

REmap.JPG:  A map showing the proportion of children ages 4–18 years with religious exemptions by county as of October 31, 2021.  Counties with a proportion of 0.6%–2.0% are:  Hardee  Gadsden  Liberty  Hendry  Calhoun  Hamilton  Bradford  Jackson  Taylor  Dixie  Glades  DeSoto  Madison  Putnam  Washington  Franklin  Levy  Counties with a proportion of 2.1%–3.4% are:  Okeechobee  Union  Baker  Holmes  Wakulla  Lafayette  Jefferson  Gilchrist  Miami_Dade  Leon  Nassau  Sumter  Gulf  Polk  Hillsborough  Highlands  Bay  Counties with a proportion of 3.5%–4.8% are:  Suwannee  Lake  Clay  Orange  Duval  Citrus  Escambia  St_Lucie  Marion  Indian_River  Manatee  Alachua  Palm_Beach  Pasco  Broward  Osceola  Volusia  Counties with a proportion of 4.9%–9.0% are:  Santa_Rosa  Charlotte  Seminole  Lee  Columbia  Brevard  Hernando  Collier  Pinellas  Martin  Monroe  Okaloosa  St_Johns  Flagler  Walt

Unvaccinated children are at increased risk of vaccine-preventable diseases like measles, pertussis, and varicella. Communities with a higher proportion of religious exemptions (REs) to vaccination are at increased risk of vaccine-preventable disease transmission.

The proportion of children age 4–18 years with new REs are increasing each month. Statewide, the estimated prevalence of REs among children age 4–18 years old is 4.2% with individual counties ranging from 0.6 – 9.2%. In October 2020, the statewide prevalence was 3.6%, and the prevalence has gradually increased each month since.

To learn more about REs at the local level, please visit FloridaHealth.gov/REmap.

All REs are required to be entered into Florida SHOTS (State Health Online Tracking System), Florida’s statewide immunization registry. The map above includes REs registered in Florida SHOTS through October 31, 2021.

 

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