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Pfizer, Moderna and J&J COVID-19 vaccines: What are the differences?


A third coronavirus vaccine from Johnson & Johnson could soon be on the way. What is the difference between the three coronavirus shots from Johnson & Johnson, Pfizer and Moderna? NBC senior medical correspondent Dr. John Torres joins Weekend TODAY to weigh in, and reminds reviewers that “any shot you can get at this point is the best shot for you to get.”