I was bitching about the lack of testing for the new coronavirus in the USA, and saying the reason countries like South Korea, Japan and China had flattened the number of people infected was because of testing. I think I was wrong. Masks may be more important. You can make these yourself, or wear something like a scarf over your face when you're out in public, you don't have to compete with the medical system to buy surgical grade N95 masks.
Here's a link to some summaries and other info on the subject,
https://docs.google.com/document/d/1...h.9yzpxufkt5ow