A vaccine trial is a study to test a new vaccine or medicine. It helps determine if the vaccine is safe and effective in preventing a specific disease. Full definition
He suggests one option may be to recruit «sleeper sites» for vaccine trials across the globe. (sciencedaily.com)
Throughout the years, there have been a multitude of vaccine trials, nearly all with mixed results. (hvtn.org)
Most other vaccine trials have tried to use the malaria parasite — rather than the body's reaction against it — to find possible targets for vaccines. (sciencemag.org)