On Friday evening, December 18, 2020, the United States Food and Drug Administration (FDA) approved Moderna’s mRNA COVID-19 vaccine for emergency use, joining Pfizer’s previously approved vaccine in the fight against COVID-19.

In previous articles, I discussed how mRNA vaccines work and the safety data gathered from clinical trials thus far on the Pfizer vaccine. But the big question with these new vaccines, developed during Operation Warp Speed, is do we have enough data to predict if they are safe long-term? Or as my husband said, “Are we going to turn into zombie vampire mutants, like in I Am Legend?”

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