New guidance from the federal government set off a cascade of mask rules across the nation Wednesday as cities, states, schools and businesses raced to bring back mandates and others pushed back against the guidelines at a time when Americans are exhausted and confused over constantly shifting pandemic measures.
LOS ANGELES (AP) — A rapid and sustained increase in COVID-19 cases in the nation's largest county requires restoring an indoor mask mandate even when people are vaccinated, Los Angeles County's public health officer said Thursday.