US Warned of Possible ‘Fourth Surge’ Amid Variants Spread

• A potential fourth surge of cases in the US may be on the line owing to the pandemic spread.
• The UK, South Africa and Brazil strains appear to be more contagious.
• CDC warns that until more people are vaccinated, variants could drive a spike in cases.

A top health official has warned that the spread of highly contagious coronavirus variants is threatening to fuel a “potential fourth surge of cases,” reports BBC.

The head of the US Centers for Disease Control and Prevention...

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