I remember making a comment in the early days of this "virus" and quoting the Vic Health Minister - that no one really knew much about it and they are finding something new every day.
Roll on a year or so and it appears we are still in the same boat - no one really knows anything about it. BUT and this is a big BUTT - they are happy to tell us what to do. In another era this would have been called "the blind leading the blind"!!!