How the Pfizer and Moderna COVID-19 vaccines compare l GMA

ABC News' Tom Llamas reports on how the two vaccines stack up on the key question of effectiveness.

LEARN MORE:
You may feel lousy after getting the COVID vaccine. Experts say that's OK: https://abcn.ws/37okuwa
Pregnant? Allergies? Immunocompromised? You are still eligible for COVID-19 vaccine: https://abcn.ws/3moXthc

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Видео How the Pfizer and Moderna COVID-19 vaccines compare l GMA канала ABC News