New COVID variant NB.1.8.1 detected by Stanford as US limits vaccines - San Francisco Chronicle

New COVID variant NB.1.8.1 detected by Stanford as US limits vaccines - San Francisco Chronicle
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Passengers walk through the terminal at San Francisco International Airport in 2021. Stanford researchers have detected the new COVID-19 variant NB.1.8.1 in international travelers screened at airpor… [+4142 chars]

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