COVID-19 is spreading should always wear masks in shops, workplaces and schools that lack adequate ventilation, the World Health Organization (WHO) said on Wednesday.If they cannot maintain physical distancing of at least one meter (3 ft), people in those indoor locations — including children and students aged 12 or over — should also wear a mask even if the spaces are well ventilated, it said in a tightening of its guidelines.They should also wear masks outdoors if physical distancing cannot be maintained, it said.
Wearing a mask may reduce how sick you get from coronavirus WHO spokeswoman Margaret Harris said the recommendations were among the biggest changes to its guidance on mask-wearing, and updated advice from June.“If indoors,.