Myocarditis risk higher after Covid infection than Pfizer or Moderna vaccination, CDC finds
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*The risk of myocarditis is higher after Covid infection than Pfizer or Moderna vaccination across all gender and age groups studied, according to the...
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More contagious omicron BA.2 subvariant now dominant in the U.S., CDC says
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*BA.2 is now the dominant version of Covid-19 in the U.S. as it accounts for nearly 55% of Covid cases that have undergone genetic sequencing, accordi...
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