Mask-wearing plays big in Europe's post-lockdown protocol

France on Monday joined the ranks of European countries which have mandated the use of face masks in all indoor public places, in another sign that the face mask is playing big in Europe's post-lockdown measures to limit COVID-19 transmission. Before France, multiple governments - from Belgium, the Czech Republic, Greece, and Romania to Slovenia, Albania, and Serbia - have already obliged their citizens to cover their mouth and nose in indoor public spaces. A dozen other European countries such as Britain, Austria, Italy, Hungary, Poland, Spain, the Netherlands, Ireland and Malta have mandated the use of face masks on public transport.