The first phase 3 vaccine trial is underway! Moderna is the biotech company partnering with the National Institutes of Health that is first off the blocks. Phase 1 trials test safety. Phase 2 trials test efficacy and safety in a slightly larger number of people. Then phase 3 trials are done in even larger numbers to get a lock-in on safety and efficacy. This trial by Moderna will include 30,000 people, half with active vaccine and half with a placebo. While the entire trial will last 2 years, we may have preliminary results in as little as 3 months, especially if it works well.