DALLAS - March 23, 2021 - Vaccinating health care workers resulted in an immediate and notable reduction of positive COVID-19 cases among employees, reducing the number of required isolations and quarantines by more than 90 percent, according to data at UT Southwestern Medical Center published in the New England Journal of Medicine.
Health care workers were among the first groups to be eligible for vaccination.
"Real-world experience with SARS-CoV-2 vaccination at UT Southwestern demonstrated a marked reduction in the incidence of infections among our employees, preserving the workforce when it was most needed," notes Daniel K. Podolsky, M.D., president of UT Southwestern and senior author.
During the first 31 days of vaccinations becoming available, UT Southwestern provided a first dose to 59 percent of roughly 23,000 employees, while 30 percent were able to be fully vaccinated in that time frame. Among the findings:
1.5 percent became infected. Infection rates were highest - 2.6 percent - among nonvaccinated employees. Infection rates were lowest - .05 percent - among those fully vaccinated.
"Our ability to quickly vaccinate a majority of our workforce in the midst of what became the largest surge to date in the region made a critical difference in ensuring we were able to continue providing top-flight care while health systems were strained," says John Warner, M.D., executive vice president for health system affairs at UT Southwestern.
Researchers also saw advantages among partially vaccinated individuals, and from Jan. 9, the actual number of positive tests among all UT Southwestern employees was consistently lower than the number projected.
The data also show continued need to address vaccine hesitancy, with UT Southwestern now approaching 70 percent immunization among its workforce.
"In light of this real-world experience clearly demonstrating the effectiveness of immunization, further understanding of the reticence of some individuals to take advantage of vaccination bears even greater importance," says first author William Daniel, M.D., vice president and chief quality officer at UT Southwestern.
UT Southwestern has provided educational outreach to community groups and businesses, developed extensive online resources including Q&As and blogs, and is preparing to launch a multilingual public service announcement campaign to help educate diverse communities about vaccination and address issues of hesitancy.
"It is important to reach out across multiple platforms to effectively address people's questions so that we can continue to make progress on vaccine hesitancy," says Marc Nivet, Ed.D., executive vice president for institutional advancement at UT Southwestern.
Dr. Daniel, professor of internal medicine, holds the William T. Solomon Professorship in Clinical Quality Improvement at UT Southwestern Medical Center. Dr. Nivet is associate professor of family and community medicine. Dr. Podolsky, professor of internal medicine, holds the Philip O'Bryan Montgomery, Jr., M.D. Distinguished Presidential Chair in Academic Administration and the Doris and Bryan Wildenthal Distinguished Chair in Medical Science. Dr. Warner, professor of internal medicine, holds the Nancy and Jeremy Halbreich, Susan and Theodore Strauss Professorship in Cardiology and the Jim and Norma Smith Distinguished Chair for Interventional Cardiology.
About UT Southwestern Medical Center
UT Southwestern, one of the premier academic medical centers in the nation, integrates pioneering biomedical research with exceptional clinical care and education. The institution's faculty has received six Nobel Prizes, and includes 23 members of the National Academy of Sciences, 17 members of the National Academy of Medicine, and 13 Howard Hughes Medical Institute Investigators. The full-time faculty of more than 2,500 is responsible for groundbreaking medical advances and is committed to translating science-driven research quickly to new clinical treatments. UT Southwestern physicians provide care in about 80 specialties to more than 105,000 hospitalized patients, nearly 370,000 emergency room cases, and oversee approximately 3 million outpatient visits a year.