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Delta variant behind more than 80% of US cases; vaccines still highly effective -Fauci

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The Delta variant of the coronavirus is the cause of more than 80% of new US Covid-19 cases, but the authorized vaccines remain more than 90% effective in preventing hospitalizations and deaths, said top US infectious disease expert Anthony Fauci during a US Senate hearing on Tuesday.

The more contagious Delta variant was first found in India earlier this year. It has since become the dominant version of the virus in the United States and many other countries. It has been detected in more than 90 nations worldwide.

Deaths from Covid-19 in the United States have averaged 239 per day over the past week, nearly 48% higher than the previous week, US Centers for Disease Control and Prevention (CDC) Director Rochelle Walensky said during the hearing.

-Reuters -
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