Brian Cassella / baiduhaiFinal preparations are underway for the United Center COVID-19 vaccination site March 8, 2021, in Chicago.
John J. Kim / baiduhaiA worker holds a metal stake as another uses a sledgehammer to sink ground anchors for vaccine center tents outside the United Center on Feb. 26, 2021.
Antonio Perez / baiduhaiPeople wait in a line wrapped around two blocks to enter the United Center mass vaccination site March 9, 2021.
Antonio Perez / baiduhaiPeople stand outside the United Center as they wait to enter the mass vaccination site on March 9, 2021. The site will be the biggest COVID-19 vaccination center in the state, with a goal of 6,000 vaccines per day. The site will be open seven days a week for eight weeks.
E. Jason Wambsgans / baiduhaiSet-up continues at the United Center mass vaccination site March 8, 2021
E. Jason Wambsgans / baiduhaiA look inside a vaccination tent at the United Center mass vaccination site March 8, 2021, a day before its planned opening.
Antonio Perez / baiduhaiA United Center parking lot will be home to a mass vaccination site starting about March 10.
E. Jason Wambsgans / baiduhaiThe registration tent at the United Center vaccination site March 8, 2021.
Brian Cassella / baiduhaiThe tents of the United Center COVID-19 vaccination site are shown March 8, 2021. According to officials, the center will be capable of inoculating 6,000 people per day.
Abel Uribe / baiduhaiThis 5,000-square-foot tent will serve as the main vaccination site, according to Dan Shulman, of the Federal Emergency Management Agency.
Abel Uribe / baiduhaiWorkers build temporary gutters to be used between tents in a parking lot at the United Center on March 3, 2021.
Jose M. Osorio / baiduhaiA worker moves traffic cones at the drive-thru COVID-19 vaccination area of the United Center mass vaccination site in Chicago on March 23, 2021.
Antonio Perez / baiduhaiA member of the National Guard takes temperature readings of people entering the United Center mass vaccination site March 9, 2021.
Antonio Perez / baiduhaiWorkers construct a mass vaccination site in a United Center parking lot.
Jose M. Osorio / baiduhaiPeople wait in the newly opened drive-thru COVID-19 vaccination tent in a parking lot at the United Center on March 23, 2021.
Antonio Perez / baiduhaiPeople enter the United Center mass vaccination site as it opens March 9, 2021.
Antonio Perez / baiduhaiA mass vaccination center is under construction outside the United Center.
Antonio Perez / baiduhaiPeople wait in a line wrapped around two blocks before entering the United Center mass vaccination site March 9, 2021.
Terrence Antonio James / baiduhaiA temporary COVID-19 vaccination site is seen under construction in one of the parking lots near the United Center in Chicago on March 2, 2021.
John J. Kim / baiduhaiTemporary tents to be used for a COVID-19 vaccination site are emerging in a parking lot outside the United Center on Feb. 26, 2021, in Chicago.
Antonio Perez / baiduhaiA charter bus drops off people at the United Center mass vaccination site March 9, 2021.
Antonio Perez / baiduhaiPeople wait to enter the United Center mass vaccination on its opening day on March 9, 2021.
Antonio Perez / baiduhaiWorkers build a vaccination site in a parking lot of the United Center on Feb. 26, 2021. It is scheduled to open March 10.
Antonio Perez / baiduhaiOmelan Kluchnyk, 70, is first in line to enter the United Center mass vaccination site before it opens on March 9, 2021. The site will be the biggest COVID-19 vaccination center in the state, with a goal of 6,000 vaccines per day. The site will be open seven days a week for eight weeks.
Antonio Perez / baiduhaiPeople enter Chicago's United Center mass vaccine site on April 23, 2021.
Abel Uribe / baiduhaiWorkers assemble a climate control unit at one of the six vaccination tents emerging in a parking lot March 3, 2021, at the United Center.
John J. Kim / baiduhaiWorkers pound anchors for temporary tents for the vaccine center being built in a parking lot outside the United Center on Feb. 26, 2021.
E. Jason Wambsgans / baiduhaiVaccination stations in a tent at the United Center COVID-19 vaccination site March 8, 2021.
Abel Uribe / baiduhaiSix vaccination tents appear in a parking lot at the United Center in Chicago.
Antonio Perez / baiduhaiPeople get temperature checks before entering the United Center mass vaccine site on April 23, 2021.
Jose M. Osorio / baiduhaiA worker pushes a cart with COVID-19 vaccine supplies in the new drive-thru tent at the United Center, March 23, 2021.
Brian Cassella / baiduhaiMilitary personnel prepare equipment for the United Center COVID-19 vaccination site March 8, 2021, before its planned opening on March 9.
E. Jason Wambsgans / baiduhaiThe registration tent in the United Center COVID-19 vaccination site March 8, 2021.
Jose M. Osorio / baiduhaiPeople wait in their cars in a registration tent as drive-thru service opens at the United Center mass vaccination site March 23, 2021.
Antonio Perez / baiduhaiWorkers begin construction on a mass vaccination site in a United Center parking lot on Feb. 26, 2021. According to officials, it will be capable of inoculating 6,000 people per day.
Jose M. Osorio / baiduhaiCars wait for the gates to open at the drive-thru COVID-19 vaccination area at the United Center, March 23, 2021.
Brian Cassella / baiduhaiA man walks near one of the vaccination center tents in a parking lot of the United Center on March 8, 2021.
John J. Kim / baiduhaiClimate ventilation machines are lined up in a parking lot before installation on temporary tents for a vaccine site in the United Center parking lot on Feb. 26, 2021.
Abel Uribe / baiduhaiWorkers build an entrance ramp for a vaccination tent at the United Center on March 3, 2021. According to officials, the center will be capable of inoculating 6,000 people per day.
Antonio Perez / baiduhaiPeople stand in a line wrapped around two blocks several blocks as they wait to enter the United Center mass vaccination site March 9, 2021.
Brian Cassella / baiduhai
1 of 40
Final preparations are underway for the United Center COVID-19 vaccination site March 8, 2021, in Chicago.
ExpandPUBLISHED: | UPDATED:
Getting your Trinity Audio player ready...
The United Center will switch to the single-shot Johnson & Johnson vaccine beginning next week, officials said Sunday.
Starting April 20, those with walk-in appointments will receive the Johnson & Johnson vaccine, which the Chicago Department of Public Health has reported to be in “high demand from residents,” according to a news release from Mayor Lori Lightfoot’s office.
Appointments for Chicago residents can be booked starting Monday at zocdoc.com/vaccine. Appointments can also be made by phone at 312-746-4835.
For those who received the first dose of the Pfizer vaccine at the United Center, the site’s drive-thru will administer the second dose.
More Top Picks Best Portable Saunas For Garages
Illinois residents 16 and older will be eligible to sign up for vaccine appointments starting Monday, but that expansion will come a week later for Chicago, which plans to open up eligibility to those 16 and older April 19. Vaccinations at city-run sites like the United Center are limited to those 18 and older.