Well, we made it to Friday. But, if you’ve been following me on the social, you’ll know that Covid is beginning to spread once again in Pennsylvania, New Jersey, Delaware, Virginia, and Illinois. I live in a tower block and I can say that many of my neighbours are no longer wearing masks indoors. Yet mask-wearing is the easiest defence we have against the spread of the coronavirus. So let’s take a look at the most effective types of masks, thankfully charted by xkcd.
Credit for the piece goes to Randall Munroe.