Ana-Maria Zanfir
The first line of defence: Proven efficacy of wearing a mask in preventing SARS-CoV-2 infection
How important is wearing a mask for preventing SARS-CoV-2 infection? We must say, at the outset, that wearing a mask remains important in preventing SARS-CoV-2 infection, especially because the "delta plus" variant has a high potential for contagion.