Variant

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From vaccines to variants, the U.K.'s experience of Covid-19 has often been a harbinger of things to come for other countries. ...
As the highly contagious delta variant of the coronavirus gained traction around the world, the World Health Organization urged vaccinated people to continue to wear masks and social distance, according to reports.  ...
Raf Sanchez joins Ayman to report on the spread of the Delta coronavirus variant in Israel. ...
The highly contagious Delta variant first identified in India now represents at least 20 percent of COVID cases in the United States, where it is expected to become dominant in a matter of weeks. ...

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