Big Number29,099,393. A new study shows that Pfizer and Moderna vaccines are less effective against the South African variant of the virus. More than 60 million Americans have now received at least one shot, according to the CDC, and the number of shots per day has now topped 2 million on average. However, there are concerns that Pfizer and Modernas vaccines, the first two of three approved for use in the U.S., will not be able to defend against new variants as well. More than 90 million vaccine shots have been given in the country so far, with many of them going to the elderly, who are most likely to die from the coronavirus.
51.5 million young americans have now received at least 1 shot.
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    :ARG0 (z1 / person
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                       :name (z4 / name
                                 :op1 "America")))
    :ARG1 (z5 / shoot-02
              :quant (z6 / at-least
                         :op1 1))
    :time (z7 / now))
51.5 million young americans have now received at least 1 shot .
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z4 :op1 2
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