CDC committee recommends opting for Pfizer or Moderna over J&J when there's a choice

The CDC has now confirmed a total of at least 54 cases and nine deaths from the severe clotting event, which is called thrombosis with thrombocytopenia or TSS, out of the 17 million people who have gotten the J&J vaccine in the US.
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Though it's very rare, the data led CDC experts to favor mRNA vaccines by comparison, particularly because there are so many mRNA vaccines available in the US and people are less likely to be limited.