First experimental vaccine shot given to volunteer in COVID-19 study

U.S. researchers administered the first shot to the first person in a test of an experimental coronavirus vaccine. With a careful jab on a healthy volunteer’s arm, scientists at the Kaiser Permanente Washington Research Institute began an anxiously-awaited first-stage study of a potential COVID-19 vaccine. Even if the research goes well, a vaccine wouldn’t be available for widely use for 12-18 months, according to the U.S. National Institutes of Health. The trial vaccine, code-named mRNA-1273, was developed