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My understanding is that after use, you can seal a mask in an airtight bag and leave it for a week or so, after which it should be safe to reuse (less time at a higher temperature). So really, you should be able to get by with a handful of masks, assuming only occasional errands.

I mostly agree with this, but I think it's a bit unrealistic to expect people to wear masks even when with members of their household. For people with a spouse and/or kids, that means wearing a mask most of the time, even when at home. That's a much bigger ask than encouraging people to wear a...

Even assuming that's the case, from a community health perspective, that's pretty useful. The majority of cases seem to have minimal or zero symptoms, and those are the people more likely to continue going about their business rather than self-isolating. The more people wearing masks in public...

Yeah, we certainly don't have the mask-wearing culture of some Asian countries, but some people wearing masks ought to be better than none. And a surprising number of people are, at least in the DC area. I went to a grocery store the other day, and eyeballing it, roughly a third of the people I...

The question: In what contexts are masks effective for preventing and containing the Wuhan Flu? We've all seen the various public statements made by the surgeon general, WHO, and CDC stating that Americans generally should not be wearing masks in day to day life. However, a number of experts...