If you saw the 2011 movie “Contagion,” about a worldwide pandemic of a new virus, then you’ve heard the term R0. Pronounced “R naught,” this isn’t just jargon made up in Hollywood. It represents an ...

The concept is crucial to curbing the novel coronavirus. It's also complicated. If you've been reading coronavirus news coverage, you've likely stumbled across a reference to a term called "R0." It's ...