- Stanford scientists detect new COVID variant in California as U.S. moves to tighten vaccine access San Francisco Chronicle
- COVID variant NB.1.8.1 hits U.S. What to know about symptoms, new booster vaccine restrictions CBS News
- New COVID-19 strain from China that saw massive hospitalizations spike spreads to US New York Post
- Highly contagious COVID strain detected in CA amid vaccine crackdown KTLA
- US sees cases of new COVID-19 variant linked to surge in China: report Fox News
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