Researches are in the clinical trial phase for a COVID-19 vaccine within a “record” number of days. Jennifer Haller, the first human coronavirus vaccine patient, joins MSNBC’s Ari Melber for an exclusive interview, detailing her experience as researches race to find a cure for the coronavirus affecting individuals around the world. Haller tells Melber she will have to do daily logs of her temperature, symptoms, and side effects and will be monitored for 14 months.