Maggie Haberman @maggieNYT
RT @Carolynyjohnson: Pfizer-BioNTech vaccine didn't trigger a high enough immune response in 2-4 year olds. They're modifying the trial to… — PolitiTweet.org
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Fri Dec 17 17:44:22 +0000 2021
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Maggie Haberman @maggieNYT
RT @Carolynyjohnson: Pfizer-BioNTech vaccine didn't trigger a high enough immune response in 2-4 year olds. They're modifying the trial to… — PolitiTweet.org