General Discussion
In reply to the discussion: Should we all wear masks outside home? [View all]CottonBear
(21,596 posts)South Korea does mobile testing. You must download an app and a message is sent to app with result. They know where you are and you are also alerted as to where others who have tested positive are. They (public health officials) know where all tested (negative) and tested (infected) persons are and can remind/require them to self-isolate.
This public health strategy is part of South Korean law.
I doubt Americans would go this route, even though it is highly effective.
As far as masks are concerned, a scarf or bandana will suffice for the average person, because the main thing is that it keeps you from touching your face. Wash and sterilize your hands frequently and after touching anything in public that could be contaminated.
Only medical professionals need medical grade PPE.