https://arstechnica.com/information-technology/2020/03/google-cancels-io-developer-conference-amid-coronavirus-concerns/

Silicon Valley's spring series of tech shows continues to dwindle in the face of communicable disease: Google's I/O developer conference for 2020 has now been canceled as the company cites coronavirus concerns.

"Due to concerns around the coronavirus (COVID-19), and in accordance with health guidance from the CDC, WHO, and other health authorities, we have decided to cancel the physical Google I/O event," the company said. In lieu of bringing a whole bunch of breathing, potentially coughing people together in one place, "we will explore other ways to evolve Google I/O to best connect with our developer community," likely with a heavy focus on online delivery.