In an ideal situation, we& #39;d all be wearing single-use surgical or N95 masks and following the same protocols for use. But we aren& #39;t, and the general public shouldn& #39;t be using these when there are health workers in desperate need of every piece of PPE they can get. https://twitter.com/NasimZehra/status/1250502278852808705">https://twitter.com/NasimZehr...

Here& #39;s a great thread on universal mask-wearing: https://twitter.com/zeynep/status/1247159204156043267">https://twitter.com/zeynep/st...