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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 April 2021

Hepatitis A

A graph showing hepatitis A activity has fluctuated each month from May 2020 – April 2021. In April 26 cases were reported.
  • Hepatitis A activity is similar to last month and was below the previous 5-year average.
  • 26 cases were reported in April.
  • Since 2018, 98% of cases were not up-to-date on hepatitis A vaccinations.
  • Northwest Florida had the highest average incidence rates from February 2021 to April 2021.

Pertussis

A graph showing pertussis activity has fluctuated each month from May 2020 – April 2021. In April 8 cases were reported.
  • Pertussis activity increased from last month and was below the previous 5-year average.
  • 8 cases were reported in April.
  • Compared to November 2018 - April 2019, there was an 83% decrease in reported cases in the past 6 months.
  • In the past 6 months, the average incidence rate for <1 year old was 31 times lower compared to November 2018 - April 2019.

Varicella

A graph showing varicella activity has fluctuated each month from May 2020 – April 2021. In April 30 cases were reported.
  • Varicella activity increased from last month and was below the previous 5-year average.
  • 30 cases were reported in April.
  • 1 — 5 year olds had the highest incident rate.
  • 57% 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.

A map showing the proportion of children ages 4–18 years with religious exemptions by county as of April 30, 2021.  Counties with a proportion of 0.6%–1.6% are: Hardee Gadsden Liberty Hendry  Dixie Calhoun Bradford Taylor Glades Hamilton Jackson Lafayette Washington DeSoto Madison Okeechobee Levy  Counties with a proportion of 1.7%–3.1% are:  Holmes Putnam Union Gilchrist Franklin Baker Wakulla Jefferson Miami_Dade Leon Sumter Nassau Gulf Highlands Polk Suwannee Bay Counties with a proportion of 3.2%–4.3% are: Hillsborough Lake Clay Orange Duval Citrus St_Lucie Manatee Marion Escambia Indian_River Palm_Beach Pasco Charlotte Alachua Broward Santa_Rosa  Counties with a proportion of 4.4%–8.1% are: Osceola Volusia SeminoleLeeBrevardHernando Collier Columbia Pinellas Okaloosa Martin Monroe St_Johns Flagler Walton Sarasota

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 3.8% with individual counties ranging from 0.6 – 8.1%. In April 2020, the statewide prevalence was 3.4%, 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 April 28, 2021.

 

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