Watch: COVID-19 vaccines being administered in the Illinois Quad Cities COVID-19 vaccines are set to be administered to healthcare workers in the Illinois Quad Cities for the first time, Wednesday, December 16. Author: Katrina Lamansky Updated: 4:06 PM CST December 16, 2020 COVID-19 vaccines are set to be administered to healthcare workers in the Illinois Quad Cities for the first time, Wednesday, December 16. COVID-19 vaccines are set to be administered to healthcare workers in the Illinois Quad Cities for the first time, Wednesday, December 16. wqad.com |Dec 16, 2020 COVID-19 vaccines are set to be administered to healthcare workers in the Illinois Quad Cities for the first time, Wednesday, December 16.