https://techcrunch.com/2020/02/09/as-top-exhibitors-pull-out-of-mwc-organizers-implement-stringent-safeguards/

A couple of weeks out, Mobile World Congress organizer, the GSMA, has issued some fairly sweeping safeguards over growing concerns around the coronavirus. After a number of high profile back outs, including ZTE, LG, NVIDIA and Ericsson, the company issued a new list, including a ban of visitors originating from the Hubei province, whose capital Wuhan is believed to be the origin of the epidemic.

All travelers from the Hubei province will not be permitted access to the event