COVID-19 Vaccination Development & Safety


How do COVID-19 vaccine clinical trials work?


What is a COVID-19 Emergency Use Authorization?


How safe will the COVID-19 vaccines be?


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Read more about vaccine safety here: 


CDC Vaccine Safety


Get the CDC's Post-vaccination Health Checker, V-safe. This smartphone-based tool provides personalized health check-ins after you receive your COVID-19 vaccination:




Learn more about FDA authorized COVID-19 vaccines:


Pfizer COVID-19 Vaccine Information


Moderna Vaccine Information




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LAST UPDATE: 1/22/21 10:24 AM

In the event of a discrepancy between the information on and the CDC website, please follow CDC's guidance.