coronavirus have been confirmed at four schools across Greater Glasgow.NHS contact tracing measures are now underway and those who have been in direct contact are being told to self-isolate for 14 days.Dalmanrock Primary, St Martha's Primary and Govan High School have all had confirmed cases of the virus.While, Mossvale Primary in Renfrewshire has also been hit by a positive coronavirus case.NHS Greater Glasgow and Clyde revealed their test and protect teams are carrying out the contact