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A vaccine trial is a clinical trial that aims at establishing the safety and efficacy of a vaccine prior to it being licensed.[1]
A vaccine candidate drug is first identified through preclinical evaluations that could involve high throughput screening and selecting the proper antigen to invoke an immune response.[citation needed]
Some vaccine trials may take months or years to complete, depending on the time required for the subjects to react to the vaccine and develop the required antibodies.[citation needed]
- ^ Halloran, M. Elizabeth; Longini, Ira M. Jr.; Struchiner, Claudio J. (2010). Design and analysis of vaccine studies. Statistics for biology and health. New York: Springer. ISBN 978-0-387-40313-7. MR 2572061.[page needed]