People wait in line to be tested for coronavirus disease (COVID-19) at the Tower Theatre in Oklahoma City, Oklahoma, U.S., January 11, 2022. REUTERS/Nick Oxford

WASHINGTON, Jan 14 (Reuters) – The U.S. Centers for Disease Control and Prevention (CDC) late on Friday revised its guidance for Americans on wearing masks, recommending wearing "the most protective mask you can," although the agency stopped short of calling for nationwide N95 usage.

The CDC clarified in its revised website "that people can choose respirators such as N95s and KN95s, including removing concerns related to supply shortages for N95s." It added that Americans should "wear […]

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By Donato