CDC reports on COVID-19 vaccine safety data

The first report on the COVID vaccine’s safety profile is nothing short of amazing.

The CDC reports that as of Feb. 20, 79,128,495 COVID-19 vaccine doses from Moderna and Pfizer/BioNTech have been distributed, while 61,289,500 doses have been administered.

The agency also disclosed that safety profiles for both COVID-19 vaccines are reassuring and that no new adverse events have been reported, and of the 6,994 adverse events notifications received after vaccination, 90.8% were considered nonserious and 9.2% were classified as serious, based on data published in the CDC’s Morbidity and Mortality Weekly Report released last week.

The CDC collected data between Dec. 14, 2020, and Jan. 13, 2021, from both an existing national surveillance system for adverse events and its own safety monitoring system established for COVID-19 vaccines.

During that time, 6,994 reports of adverse events after vaccination were recorded in the national surveillance system with 90.8% of them classified as non-serious and 9.2% as serious.

Rare cases of anaphylaxis, a severe allergic reaction requiring medical attention, were reported with both vaccines at a rate of 4.5 cases per million doses administered, down from the agency’s previously reported rate of 5 per million doses administered.

“Healthcare providers and vaccine recipients can be reassured about the safety of Pfizer and Moderna COVID-19 vaccines,” the CDC said in its Morbidity and Mortality Weekly Report.

A total of 113 deaths were reported and available information, including from death certificates and autopsy reports, found no causal link between COVID-19 vaccination and fatalities, CDC said.


This blog was accurate as of the day of posting. However, as the COVID-19 pandemic rapidly evolves and the scientific community’s understanding of the novel coronavirus and the COVID vaccine develops, the information above may have changed since it was last updated. While I aim to keep all of my blogs on COVID and the COVID vaccine up to date, please visit online resources provided by the CDC, WHO, and your local public health department to stay informed on the latest news.

© Copyright WLL, INC. 2021. This blog provides a wide variety of general health information only and is not intended to be a substitute for professional medical advice, diagnosis, or treatment from your regular physician. If you are concerned about your health, take what you learn from this blog and meet with your personal doctor to discuss your concerns.

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