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Covid-19 variants pose ‘real threat’ to vaccine progress, CDC warns – Yahoo News Australia

A top health expert says highly contagious variants of the virus pose a “real threat” to the US.



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Dr Rochelle Walensky said recent declines in cases had “levelled off at a very high number”
The spread of highly contagious coronavirus variants is threatening to fuel a “potential fourth surge of cases” in the US, a top health official has warned.
The head of the US Centers for Disease Control and Prevention (CDC) said she was concerned by recent Covid-19 data.
Dr Rochelle Walensky said about 70,000 new cases a day had been recorded last week – “a very high number”.
There were nearly 2,000 deaths…

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