Coronavirus infections have dropped sharply in the US, with new cases at their lowest levels since November.
However, health officials worry that the spread of more contagious variants could reverse that progress.
US correspondent Ira Spitzer has more
However, health officials worry that the spread of more contagious variants could reverse that progress.
US correspondent Ira Spitzer has more
IN: The decline in...
OUT: SOC
DUR: 46
POT: 38