Parkland Center for Clinical Innovation’s Forecasts Summer COVID-19 Herd Immunity for Dallas County

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COVID 19 Dallas County graph

PCCI Forecast Is Based on Recoveries, Vaccines

DALLAS – Parkland Center for Clinical Innovation (PCCI), which improves healthcare for vulnerable populations using advanced data science and clinical experts, estimates Dallas County will reach a critical tipping point of COVID-19 “herd immunity” in late-June due to total case recoveries and vaccinations.

 

PCCI forecasts that Dallas County is on track to have 80 percent of the county residents at levels of COVID-19 “herd immunity” by early summer. This forecast is based on models estimating individuals who either have recovered from COVID-19 or who have received vaccinations.

“Our forecast is determined by the data, models and trends we have been monitoring and analyzing since the beginning of the pandemic and informed by the latest national and international research. We are optimistic that by early summer, much of Dallas County will reach herd immunity,” said Steve Miff, PhD, President and CEO of PCCI. “We will get to herd immunity either through continued infection, which is a slow route that will continue to harm the community and economy, or vaccinations.

This underscores the importance of Dallas County residents registering for and receiving the COVID-19 vaccinations as quickly as possible and continuing to stay vigilant and safe from being infected. We’re also racing to stay ahead of the development and spread of existing or future new COVID-19 strains. We are in this together and will only get there though our collective and combined efforts.”

44% Of Adult Residents In Dallas County Have Recovered From COVID or Received vaccine

PCCI’s analysis, as of Feb. 22, indicates that the county has already reached 44% of the 2.6 million adult residents of Dallas County as either recovered from COVID-19 or in the process of receiving their full COVID-19 vaccine. That includes 922,460 COVID-19 confirmed and presumed infected and recovered, and 270,642 residents who have received their first (154,766) and second (115,875) vaccine shot.

PCCI Dallas County map
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PCCI Dallas County map

“Reaching the tipping point for herd immunity is achievable with continued community effort,” said Thomas Roderick, PhD, Senior Director of Data and Applied Sciences at PCCI. “But parts of the county may not share the early benefits in our estimated forecast if they don’t keep pace with vaccines. Vaccines are also the best line of defense against COVID-19 variants, so it is critical that vaccines are made available to as many people as possible and county residents make it a priority to get vaccinated.”

 

PCCI’s forecast for herd immunity is based on widely accepted statistical analysis of spread and management of diseases within communities. Further, PCCI’s 80% range for reaching herd immunity is in line with national estimates, such as that of Anthony S. Fauci, MD, Director of the National Institute of Allergy and Infectious Diseases, who recently gave a range of 70 to 90% and the World Health Organization that gave a 60 to 70% range of infections and vaccines to reach herd immunity*.

 

PCCI’s forecast and estimates have been developed in coordination with and reviewed by community health leaders in Dallas County including experts at UT Southwestern Medical Center, Dallas County Health and Human Services and Parkland Health & Hospital System.

 

“Our predictions for Dallas County to reach its herd immunity tipping point include algorithms to predict total infections and forecasts of vaccination rates. We encourage the community to participate in virological studies such as the one conducted by our colleagues at UT Southwestern (https://utswmed.org/covidstudy/) so we can better understand the community infections and impact. We also need to register and vaccinate the most vulnerable as well as the rest of the population as soon as they are eligible,” said George ‘Holt’ Oliver, MD, PhD, Vice President of Clinical Informatics at PCCI.

Forecast Will Be Updated Monthly

PCCI will update its forecast monthly to understand how well the county is progressing toward its 80% vaccinated and infected and recovered rate. The updates will incorporate the latest data, intelligence and information from new studies, research and developments regarding the COVID-19 pandemic and impact of emerging strains.

 

PCCI has made available an important tool to help Dallas County residents stay vigilant and understand their personal risk, the MyPCI App, a free web-based app that will help individuals make informed choices by providing an on-demand, location-based personal risk assessment of possible COVID-19 exposure. MyPCI is a sophisticated machine learning algorithm, geomapping and hot-spotting technology that uses daily updated data from Dallas County Health and Human Services (DCHHS) on confirmed positive COVID-19 cases and the population density in a given neighborhood. Based on density and distances to those nearby who are infected, the MyPCI App generates a dynamic personal risk score.

 

To use the MyPCI App, go to, https://pccinnovation.org/mypci/, click on the link and register (Using code: GP-7xI6QT). Registration includes a request for individual location information that will be used only for generating a risk assessment, never shared. Once registered, simply login daily and a COVID-19 personal risk level score will be provided along with information to help individuals make informed decisions about how to manage their risk.

 

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.

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