Attack COVID-19 With a Swiss Cheese Approach

Psychology professor James Reason uses Swiss cheese to explain how layering defenses mitigate threats. The idea is that a lapse at one layer does not allow a risk to materialize since other defenses prevent a single point of failure. It also works in halting the spread of COVID-19. https://drive.google.com/file/d/1MbNoHy6onC0Io_af-uLlfLWKOSrEpiPT/view?usp=sharing