Health systems in Wisconsin begin vaccinating frontline workers Share Last updated on December 18th, 2020 at 11:05 am An emergency department physician at Aurora Sinai Medical Center was the first Advocate Aurora Health employee to receive the COVID-19 vaccine Tuesday. The Milwaukee- and Downers Grove, Illinois-based health system began distributing the Pfizer vaccine Tuesday to frontline clinicians, including those working in emergency departments, intensive care units and other setting with COVID-19 patients. Dr. Anne Johnson, an emergency department physician at Aurora Sinai Medical Center, was the first in the Advocate Aurora system to be vaccinated on Dec. 15. Distributing the vaccine to Advocate Aurora’s first-priority employee group is expected to take four to six weeks, depending on supply, according to Robert Citronberg, director of the division of infectious disease at Advocate Lutheran General Hospital in Park Ridge.