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First vaccine test in US 'revved up people’s immune systems'

Nearly two dozen possible Covid-19 vaccines are in various stages of testing around the world

The first Covid-19 vaccine tested in the US revved up people’s immune systems just the way scientists had hoped, researchers reported Tuesday — as the shots are poised to begin key final testing. “No matter how you slice this, this is good news,” Dr Anthony Fauci, the US government’s top infectious disease expert, told The Associated Press.

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