Lately, in the ongoing conversation about how to defeat the coronavirus, experts have made reference to the “Swiss cheese model” of pandemic defense. The metaphor is easy enough to grasp: Multiple ...

In hopeful news this week, Pfizer and its partner, BioNTech, released interim results from an ongoing trial of their candidate coronavirus vaccine. The study involved 43,538 volunteers who were ...

Add Yahoo as a preferred source to see more of our stories on Google. An aviation safety theory may explain a plane crash in Japan this week. The "Swiss cheese" theory argues that crashes are often ...