Since every other person in Asia is wearing a face mask, that must be the way to stop the spread of the virus??

Not so, apparently. It maskes even more sense to wash your hands and avoid contact with your face and eyes:
https://blogs.webmd.com/webmd-doctors/20200127/can-wearing-mask-protect-you-from-coronavirus

Apparently, masks work best to keep an infected person from spreading the irus via airborne droplets.

The habitual use of facemasks dtes back to the practices of the Japanese, afflicted by the horrendous bombing of WWII.
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Geezer in Chief