A woman enters a CVS Covid-19 vaccine site in Monterey Park, California on April 27, 2021.
Frederic J. Brown | AFP | Getty Images
On Monday, Walgreens announced it will provide same-day appointments at stores beginning on Wednesday. The company is also activating mobile clinics in underserved neighborhoods of Chicago that allow people people to walk up and get a shot. The mobile clinics, which resemble a van or a trailer, will expand to other cities, too, said Rina Shah, group vice president of pharmacy operations at…