Pfizer - Reporting Adverse Events
https://www.pfizer.com/products/patient-safety/adverse-event-reporting
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Moderna - COVID-19 Vaccine info
https://www.modernatx.com/covid19vaccine-eua/recipients/
The Moderna COVID‑19 Vaccine has not been approved or licensed by the US Food and Drug Administration (FDA), but has been authorized for emergency use by FDA, under an Emergency Use Authorization (EUA), to prevent Coronavirus Disease 2019 (COVID‑19) for use in individuals 18 years of age and older. There is no FDA-approved vaccine to prevent COVID‑19.
The EUA for the Moderna COVID‑19 Vaccine is in effect for the duration of the COVID‑19 EUA declaration justifying emergency use of the vaccine, unless terminated or revoked (after which the vaccine may no longer be used).