Mask, take the obligation outdoors in different cities to ward off new coronavirus infections in Italy in the white, yellow, orange and red area in view of Christmas. A measure that experts commented on Adnkronos Health. Read also “I do not know if it is a lack not to have foreseen it yet” at national level “but one thing I can assure you: putting the obligation of the Ffp2 mask in transport, this would have had more effect than everything”. Virologist Andrea Crisanti is convinced of this and comments on the choice of an ever-increasing number of Municipalities, including Milan, which are moving towards the restoration of the obligation, particularly in historic centers. For the director of the Department of Molecular Medicine of the University of Padua, what would have the most effect is the use of the Ffp2 masks on public transport, particularly exposed places, given the proximity and forced contact between people. Can the imposition of the mask outdoors help in any case? “Obviously it depends on the situation, if there is a gathering or not”, he concludes. The obligation to wear a mask outdoors “in the white area I understand that it could have appeared a bit heavy and excessive but I see that there are already several provisions on the territory “which extend the obligation also in the white zone” to the places most at risk as done by Milan and other cities around Italy “. So then at the Adnkronos Salute virologist Fabrizio Pregliasco, professor at the University of Milan. “I believe that in precautionary terms – underlines the virologist – in the shopping areas and in the moments of gathering outdoors, the mask should be used, recommended and at the most prescribed”. “It is right to take them outdoors when the distance cannot be respected. safety “, explains Walter Ricciardi, advisor to the Minister of Health Roberto Speranza and professor of Hygiene at the Catholic University of Rome. Roberto Cauda, director of infectious diseases at the Gemelli Polyclinic in Rome, is “always in favor of wearing a mask, it is the best choice without having to take it off and put it on every time”. “A study by the University of Cambridge has established that there is a risk of contagion even outdoors – recalls Cauda – So, especially if there are crowds, the mask must also be worn when you are outdoors”.