I wrote quite recently about facemasks, and the research showing what an important role they could play in preventing a resurgence of COVID-19, if we got into the habit of wearing them...
The English government has now announced that it will be following Scotland's lead on masks, and making them compulsory in shops. Two-thirds of us feel safer if we and those around us wear one, so this should encourage the third who haven't worn one when going out, to rethink it.
Heroes, the charity set up by and for NHS workers has some interesting research - read more here