The 1918 Flu and the Influenza Virus

The 1918 flu was a particularly infectious strain. It was able to sort of travel the globe. One hypothesis is antigenic shift. We'll see. Is it really? I don't know. So what happened? This this was not this incident was not isolated at Deppens. The extreme mortality. It spread globally. And if so, how did it pick up pathogen or how did it picked up virulence? Right. Well, yeah. Kind of. Let's talk about the flu virus.