Best defense against ANY virus is to keep your resistance in good shape. Anti-biotics do not kill viruses.
Avoid excess fatigue, and exposure to extreme temperatures.
And get plenty of sleep each night.
Eat lots of fruits and veggies. And of course wash hands frequently. When I am doing all of this, I avoid colds, flu and other viral diseases. When not, then here comes flu.
I have been taking Vitamin D and adding different herbs in my homemade soups and casseroles. I stocked up on bottled water, dry goods and batteries (in case things go bad and I don’t want to go out in the public- I am moving my office to my house). Like you shared, best thing to do is take some precautions. Just don’t become so frightened that one spends money unnecessarily and becomes stressed out with no rest.