óÐÉÓÏË ÉÚÍÅÎÅÎÉÊ × ÑÄÒÅ 6 4 opennet.ru - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from opennet.ru Daily Mail and Mail on Sunday newspapers.
A new study comparing data from 166 countries that closed their borders during the first 22 weeks of the pandemic says most targeted closures – aimed at travellers from COVID-19 hotspots – did little to curb the crisis. Total closures helped, but at a cost.