My intuition is that this is a supply chain / inventory management closure, not a virus risk closure. They have 509 stores in 25 countries (incl China). I don't believe that they would close over 90% of those stores simultaneously due simply to generalized viral transmission risk.

I find it guileful that they announced the closure in the middle of the night at the end of the week, a day after having announced the opening of their four remaining China stores to great fanfare from the equity market.