In U.S., public health caution clashes with vaccine optimism, eased restrictions
WASHINGTON — The United States is at a COVID-19 crossroads — and public health officials are worried about which path it will choose.
Dr. Rochelle Walensky, director of the U.S. Centers for Disease Control, is urging Americans not to let their guard down.
For a second straight day, Walensky is warning about the potential for highly contagious COVID-19 variants to undo the country’s hard-won progress.
Her message is competing with a torrent of seemingly good news.

