DALLAS – Due to low vaccination levels and new COVID-19 cases in Dallas County, the Parkland Center for Clinical Innovation’s COVID-19 Vulnerability Index has recorded a 600 percent aggregate increase between the end of June and the end of July 2021, primarily driven by the fast-spreading COVID-19 Delta variant.

The ZIP code with the highest Vulnerability Index, 75228, in East Dallas bordered by Interstates 30 and 635 and intersected by Highway 12, has a 19.76 vulnerability rating as of July 27, an increase of 17.95 over June 27. The ZIP code with the second highest Vulnerability Index rating, 75243 east of Highway 75 and intersected by Interstate 635, has a 19.66 vulnerability rating, an increase of 16.01 from June 27. The growth in these areas highlight increasing risk for Dallas County.

“Vaccinations help prevent the spread and reduce mortality of COVID-19,” said Thomas Roderick, PhD, Executive in Residence at PCCI. “Our latest Vulnerability Index report shows that COVID-19 risk is increasing, with new cases rising sharply among the unvaccinated. It is important to get the vaccine if you are medically able to do so, both for yourself, your young children, and for your neighbor who may not be able to receive a vaccination.”

One of the hardest hit ZIP Codes during the past year is 75211, which includes the areas around Cockrell Hill and Oak Cliff, which has a vulnerability rating of 14.75. It continues to be in the top 10 most vulnerable ZIP codes, though still far below its high of 157.96 registered in January 2021.

Launched in June of 2020, PCCI’s Vulnerability Index identifies communities at risk by examining comorbidity rates, including chronic illnesses such as hypertension, cancer, diabetes and heart disease; areas with a high density of populations over the age of 65; and increased social deprivation such as lack of access to food, medicine, employment and transportation. These factors are combined with behavioral

factors such as vaccination rates and confirmed COVID-19 cases where a vulnerability index value is scaled relative to July 2020’s COVID-19 peak value. The PCCI COVID-19 Vulnerability Index can be found on its COVID-19 Hub for Dallas County at: https://covid-analytics-pccinnovation.hub.arcgis.com/.

“Without question, vaccinations are the key to Dallas County getting through the Delta surge and hopefully ending the pandemic,” said George “Holt” Oliver, MD, Vice President of Clinical Informatics at PCCI. “The vaccinations for adults and children over 12 years old, are effective, easily obtained and quickly administered. We should all do our part to get vaccinated and encourage others to do the same. That is the way we will crush COVID.”

Data Sources:
To build Vulnerability Index, PCCI relied on data from Parkland Health & Hospital System, Dallas County Health and Human Services Department, the Dallas-Fort Worth Hospital Council, U.S. Census, and SafeGraph.

About Parkland Center for Clinical Innovation
Parkland Center for Clinical Innovation (PCCI) is an independent, not-for-profit, healthcare intelligence organization affiliated with Parkland Health & Hospital System. PCCI leverages clinical expertise, data science and social determinants of health to address the needs of vulnerable populations. We believe that data, done right, has the power to galvanize communities, inform leaders, and empower people.

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