My greatest concern with the original post is sheer fatigue rushing about like that. You also will be spending a lot of in crowded places. Not enough time relaxing.
We have bookings for September-November in Italy. We may or may not need to cancel, but this is too soon to know. The best science does not know the course of COVID-19, whether it becomes like the flu. The situation is not helped by the mediademic. A doctor friend reminded yesterday that globally 5000 people are killed by influenza every week, !0,000 in the US so far this northern winter. The flu season is winding down in Italy, but there will probably be new fluvax available in Australia in March. No, it won't work against whatever else but if you don't get knocked by the flu you won't have a weakened immune system.
My Australian travel insurance, where we took out cover before 22 January, COVIS-19 day, says refund if SmartTraveller says don't go, no refund if just fear.
So be very watchful. If necessary to cancel with loss, do that closer to time.
As regards health in Italy, be conscious that Italy is a member of the G7 (whereas Australia a lesser economy member of the G20), a country with highly developed health, medical and drug industries, oldest medical schools on the planet... and it evident in their radical moves against these new cases
that they are well prepared.
Edited: 23 February 2020, 10:07