Severe allergic reactions to Pfizer’s COVID-19 vaccine are ‘rare,’ CDC says

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Severe allergic reactions to Pfizer’s COVID-19 vaccine were “rare” in the first 10 days of its rollout, with 21 cases among nearly 1.9 doses, the CDC reported.

Severe allergic reactions to Pfizer’s COVID-19 vaccine were “rare” in the first 10 days of its rollout, with 21 cases among nearly 1.9 doses, the CDC reported.