Covid cases are on the rise, yet few precautions have come back. Why?

Covid cases are on the rise, yet few precautions have come back. Why? As the BA.2 subvariant spreads, Philadelphia is the only major U.S. city reinstating its indoor mask mandate. NBC News

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Now, as the more contagious BA.2 subvariant of the omicron strain spreads, it’s business as usual for much of the country. While the Centers for Disease Control and Prevention extended the federal transit mask mandate Wednesday and a handful of universities have brought back mask requirements, other restrictions remain relaxed...