
Vaccine efficacy is defined as the reduction in the incidence of a disease among people who have received a vaccine compared to the incidence in unvaccinated people. It is usually measured in a randomised controlled trial (RCT) The efficacy of a new vaccine is measured in phase II or phase III clinical trials by giving one group of people a vaccin...
Found on
http://en.wikipedia.org/wiki/Vaccine_efficacy

The potential of a vaccine to protect from a disease in controlled clinical trials. Expressed as a percent.
Found on
https://vaccine-safety-training.org/glossary.html

The science and activities relating to the detection, assessment, understanding and communication of adverse events following immunization and other vaccine- or immunization-related issues, and to the prevention of untoward effects of the vaccine or immunization
Found on
https://www.futurelearn.com/info/courses/the-role-of-vaccines-in-preventing
No exact match found.