Illustration of a vaccine and the caduceus weighed on a scale.
Illustration: Kate Dehler

One Man’s Quest to Infect People With Covid-19 for Science

Inside the movement to launch a human challenge trial for Covid-19

uring Josh Morrison’s first year at Harvard Law School in 2007, while preparing for exams, he took a break from his studies and turned to the New York Times Magazine. That’s when he read an article that changed the trajectory of his life.