Support WBURVaccinating Homeless Patients Against COVID-19: 'All Bets Are Off'Play04:37Download AudioYuki NoguchiFebruary 17, 2021 ShareNurse Modesta Littleman vaccinates patient Peter Sulewski in late January, on the first day of vaccinations at a clinic run by Health Care for the Homeless in Baltimore. (Yuki Noguchi/NPR)