Air purification: “the massive effort” promised by Macron by “the end of the year” is long overdue

What do the flu, bronchiolitis and Covid-19 have in common? Besides filling hospitals these days, these three illnesses are all caused by a respiratory virus that is transmitted mainly through the air. Making it purer must be one of the public health priorities for the years to come, insist many scientists. It was also a presidential campaign promise from Emmanuel Macron.