PHILADELPHIA (WPVI) -- New numbers are shedding light on just how quickly the Delta variant of COVID-19 is spreading in the United States. The more contagious Delta variant now makes up 83% of ...
An alleged warning has spread online for years about a supposed "new COVID-Omicron XBB variant" — a new strain of the coronavirus that has spread globally since early 2020. Framed as official guidance ...
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