What about masks?
It is becoming clear that countries with mask-wearing cultures are faring much better in the pandemic than the United States and Europe.
Here are a few articles on this topic:
As detailed in the video featuring the NYC ICU doctor, the only people who need N95 masks are the healthcare providers engaged in performing aerosol-generating medical procedures on COVID-19 patients. Hopefully in the fairly near future, the supply of surgical masks will become adequate to enable the general public to wear disposable masks.
In the meantime, however, homemade facemasks are much better than nothing. There are dozens of website and videos available now to guide you in making homemade facemasks, just Google “facemask patterns”. I have found that this pattern is especially good. The problem, at this point, is that fabric stores may or may not be open, basic facemask-making supplies (such as elastic) are in short supply, and not everyone has access to a sewing machine. In the event that you are unable to make or obtain a homemade mask, a bandana or scarf tied around your face is another option.