https://www.vox.com/recode/2020/2/27/21156676/coronavirus-facebook-f8-canceled-major-tech-conferences-covid-19

Facebook canceled its biggest event, F8, following Mobile World Congress’ cancellation earlier this month.

The Covid-19 coronavirus is prompting major tech conferences around the world to cancel their events — so far, at least three major ones have been called off entirely, including Facebook’s annual F8 developer conference. It’s an unprecedented disruption to the usual packed lineup of annual tech events every spring.