Are some COVID-19 vaccines more effective than others?

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Sumary of Are some COVID-19 vaccines more effective than others?:

  • Said Dr. Monica Gandhi of the University of California, San Francisco, citing study results for five vaccines used around the world and a sixth that still in review..
  • Still, people might wonder if one is better than another since studies conducted before the vaccines were rolled out found varying levels of effectiveness..
  • Studies for those shots counted a COVID-19 case whether it was mild, moderate or severe — and were conducted before worrisome mutated versions of the virus began circulating….

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