A sense of dread is growing in some of the poorest countries as virus cases surge and contagious variants take hold amid a crippling shortage of vaccine
Half of all adults in the U.S. have received at least one COVID-19 shot, the government announced Sunday, marking another milestone in the nation’s largest-ever vaccination campaign.
Homeless Americans who have been left off priority lists for coronavirus vaccinations — or even bumped aside as states shifted eligibility to older age groups — are finally getting their shots as vaccine supplies increase.