https://arstechnica.com/information-technology/2020/02/facebook-cancels-f8-conference-over-coronavirus-fears/

Facebook is canceling its massive F8 developers' conference over fears of COVID-19. The conference had been scheduled to begin on May 5 in San Jose, California.

"F8 is an incredibly important event for Facebook, and it's one of our favorite ways to celebrate all of you from around the world—but we need to prioritize the health and safety of our developer partners, employees, and everyone who helps put F8 on," wrote Konstantinos Papamiltiadis, Facebook's director of developer platforms.