- Highly contagious Delta coronavirus variant spreading fast in California Los Angeles Times
- WHO recommends masks -- even for vaccinated people -- because of delta variant Fox News
- State of Texas: Delta variant of COVID-19 on the rise in Texas KXAN
- Opinion | Get Vaccinated. Worry Less About Covid Variants. The New York Times
- Delta Covid variant may be edging race against vaccines The Guardian
- View Full Coverage on Google News
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