From Rob Burge, Wednesday 11 March 2020:

We are conducting our first stress test of our UK IT systems, measuring their capacity to support working from home as needed. We will also be testing our ability to work effectively from home, and expect some teething problems we wish to iron out.

So tomorrow, just over 100 randomly selected staff members have been asked to work from home.

If this goes OK, we will be running a larger 2nd stress test on Friday in the UK and will move to testing Australia, possibly next week.

In addition there will be some policy announcements and guidelines coming out shortly as well.