A small percentage of Americans got the most recent covid-19 booster shot, and even fewer probably realize the federal government is preparing to recommend yet another shot as early as Tuesday.
Until a week or two ago, William Schaffner read that indifference as a sign the Centers for Disease Control and Prevention should advocate vaccinating only those most at risk from the virus.
But then Schaffner, an infectious disease specialist at Vanderbilt University Medical Center, changed his mind.
