A potential vaccine against SARS-CoV-2 went into Phase I clinical trials in Seattle mid-March. So what exactly is being tested? How much longer will these tests take? And when can we expect a vaccine? To answer those questions I chatted with Dr. Benjamin Neuman, one of the world’s experts on coronaviruses, and Daniel Wrapp, one of the scientists who mapped the structure of the protein this virus uses to infect your cells.