. >> >> reporter: i'm hala gorani in london and between two primary schools in the north part of thed today is the last full day of classes. starting monday only the kids of essential workers like doctors and nurses will be able to attend classes. that being said, pubs, bars, stores are still very much open unlike other countries. this is happening against the back drop of a stretched national health service calling on up to 65,000 retired doctors and nurses to volunteer to come back to work to fight what the nhs is calling the greatest global health threat in its history. >> i'm fred pleitgen in berlin where angel merkel is considering whether they need tougher measures to deal with the outbreak of the coronavirus. there are many in the german government who believe the current measures for social distancing are simply falling short as cases of coronavirus here in germany continue to skyrocket with thousands of new infections every day. and come sunday angel merkel might put this country on a complete lockdown. >>> i'm in shanghai. chinese health officials are reporting a second day