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COVID vaccines’ effectiveness at preventing infection is key to a return to normalcy – CBS News

The vaccines seem to be doing a good job of keeping people from developing symptoms but if they can’t ward off actual infection, injected people could still be…

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Many or most of the people in Israel and Scotland have gotten COVID-19 inoculations and reports from both confirm that vaccines largely prevent people from getting sick. But another question is emerging: Do they also block infection?
Much is riding on the answer, experts say.
If vaccines being rolled out worldwide ward off not only symptoms but the virus itself, that could sharply slow the pathogen’s spread and hasten the return to normalcy.
“If the true impact on infections was very high, it…

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