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CDC • Vaccines have greatly reduced diseases that once routinely harmed or killed babies, children, and adults. People all over the world—including in the United States—still become seriously ill or even die from diseases that vaccines can help prevent.
Millions of people are now being immunized with mRNA vaccines from Pfizer-BioNTech and Moderna. Both vaccines have very high efficacy and look safe in the short-term. This video reviews experience with the vaccines since they were authorized for use in December 2020. (Produced February 2021).
0:00 Introduction
0:26 How mRNA vaccines work
2:11 Efficacy
2:56 Prevention of symptoms vs infection and transmission
5:00 Safety
5:43 Post-authorization safety surveillance
6:39 Data on anaphylactic reactions
7:26 Experience since authorization…...more
Millions of people are now being immunized with mRNA vaccines from Pfizer-BioNTech and Moderna. Both vaccines have very high efficacy and look safe in the short-term. This video reviews experience with the vaccines since they were authorized for use in December 2020. (Produced February 2021).
0:00 Introduction
0:26 How mRNA vaccines work
2:11 Efficacy
2:56 Prevention of symptoms vs infection and transmission
5:00 Safety
5:43 Post-authorization safety surveillance
6:39 Data on anaphylactic reactions
7:26 Experience since authorization…...more