I imagine they'll be hard to come by these days, personally I doubt wearing a face mask will make a real difference. From what I've seen here, most of the cases

I imagine they'll be hard to come by these days, personally I doubt wearing a face mask will make a real difference. From what I've seen here, most of the cases are from people who had close contact with someone who was already infected, be it over dinner, or from family members. Maybe I'm wrong, but I haven't seen any cases from people getting randomly infected on the streets. At least here in HK I understand, people often come in close contact with strangers, be it on the bus or MTR, of just walking on the streets. But I imagine that in most other countries there's less population density, so it's easier to keep your distance.