Manufacturer: Pfizer, Inc., and BioNTech
Type of vaccine: mRNA
Number of shots: 2 shots, 21 days apart
How given: Shot in the muscle of the upper arm
Does not contain:
Information on how well the vaccine works
- Based on evidence from clinical trials, the Pfizer-BioNTech vaccine was 95% effective at preventing laboratory-confirmed COVID-19 illness in people without evidence of previous infection.
- CDC will continue to provide updates as we learn more about how well the Pfizer-BioNTech vaccine works in real-world conditions.
Phase 2 and 3 clinical trials for the Pfizer-BioNTech vaccine included people from the following racial and ethnic categories:
- 81.9% White
- 26.2% Hispanic/Latino
- 9.8% African American
- 4.4% Asian
- <3% other races/ethnicities
Age and sex breakdown:
- 50.6% male
- 49.4% female
- 21.4% 65 years and older
The most frequent underlying medical conditions were obesity (35.1%), diabetes (8.4%), and pulmonary disease (7.8%).
|In the arm where you got the shot:||Throughout the rest of your body:|