Commuters wearing a protective face mask sit in a metro on March 23, 2020 in Paris, on the seventh day of a lockdown in France to stop the spread of the novel coronavirus COVID-19.Commuters wearing a protective face mask... [鈥 Coronavirus, Health, Infographic, Videos Coronavirus: an enemy with many allies at home Plastic and stainless steel surfaces are some of the biggest enemies we face in trying to combat COVID-19, scientists say 3 years ago