Both Argent and Dicer are shaking their heads, but it’s the doc who answers. "Not necessarily. Not necessarily at all. ‘Contagious’ means you can catch a disease from someone who’s already infected. But there are lots of other vectors—that’s ‘ways of transmitting a bug’," she amplifies. "Off the top of my head, I could list you a dozen diseases that are nasty as drek but aren’t strictly contagious."