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Two years in — researchers reaffirm masks protect against COVID

Researchers have been studying how much protection masks provide.

By Scott LaMar/WITF

Philadelphia to end mask mandate, days after reinstating it

The city had become the first major U.S. city to reinstate its indoor mask mandate, but faced fierce blowback as well as a legal effort to get the mandate thrown out.

By Michael Rubinkam/Associated Press
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