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Study shows PPE was highly effective against COVID-19 in emergency department workers

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Workers in America’s emergency departments were more likely to contract COVID-19 in the early days of the pandemic in community settings or at home rather than when providing patient care in a hospital setting, according to new research conducted at emergency departments across the nation.

The study, part of the COVID-19 Evaluation of Risks in Emergency Departments, known as the Project COVERED study, found that personal protective equipment, including masks, gloves and protective gowns, helped keep emergency health care workers shielded from infection while caring for patients. The study was published July 22 in the journal PLOS ONE.

“From the start of the pandemic, emergency department personnel served as the initial hospital caregivers for the majority of critically ill patients with known or suspected COVID-19 infection,” said Walter Schrading, M.D., professor in the Department of Emergency Medicine in the Heersink School of Medicine at the University of Alabama at Birmingham. Schrading is a co-author on the study.

Between May and December 2020, prior to the COVID-19 vaccine availability, emergency department staff at 20 medical centers across the country were followed with surveys, COVID-19 tests and serology testing. The study included 1,673 emergency department physicians, advanced practice providers, nurses and non-clinical staff who were observed over 20 weeks and 30,000 person-weeks in total. During this surveillance, more than 4,400 high-risk aerosolizing intubations were performed.

“At the beginning of the pandemic, the risk of providing emergency patient care was not understood. Emergency care staff were committed to their role in responding to the crisis, but they were understandably anxious,” said Nicholas Mohr, M.D., lead author and co-principal investigator of the study, at the University of Iowa Hospitals and Clinics. “Even though emergency care workers felt vulnerable performing procedures and providing clinical care for COVID-19 patients during this time, our findings support that it was really when they were outside the hospital and at home, with their families and friends, and in their community that people were at risk of infection.”

The study found that only 4.5% of emergency personnel became infected with COVID-19, and the most prominent factors associated with those infections were community exposures, hospital case counts and mask use in public.

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