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Excelsio Media by Nelson Alarcón - alarcónnelson

Does J&J's COVID vaccine need a booster shot?

Does J&J's COVID vaccine need a booster shot?
Experts are weighing the need for booster shots of the Pfizer/BioNTech, or Moderna mRNA-based vaccines for Americans who received Johnson & Johnson's one-dose vaccine due to the increasing prevalence of the Delta coronavirus variant.


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