Almost 80 school students in Victoria, Australia, are under self-isolation orders after a positive case at one Melbourne high school, Keilor Downs Secondary College, led to students from three schools being isolated. Meanwhile, workers in Victoria who have been able to work from home for the past few months have been told they will have to continue doing so as all other restrictions on people leaving their home are lifted. The premier, Daniel Andrews, said the risk of the virus spreading on peak hour public transport is too great. The Victorian chief health officer, Professor Brett Sutton, will give an update at 10am. We will bring you that live. Good morning and welcome to our ongoing global coverage of the coronavirus crisis. This is how things stand. The US president, Donald Trump, has said he is terminating the nation’s relationship with the World Health Organisation. The United Kingdom is lifting lockdown restrictions in June but a senior health adviser to the government has warned that is happening too early. There are still 8,000 infections a day in the UK. Australia, which is also easing restrictions in many states on 1 June, has had less than 50 new cases per day for the past several weeks and currently has less than 500 active cases recorded nationwide. The death toll in Brazil has passed that of Spain as the country becomes the fifth-worst affected. One-tenth of all coronavirus cases in Australia have been traced back to the Ruby Princess cruise ship, but a report published today found that in a pandemic practice drill in 2019 communications between cruise ships, government health and border control was found to be “robust and well-practised”. That’s not how it played out in March. Elsewhere, Russia has suffered its biggest daily increase in deaths, with 232 in 24 hours, bringing the nationwide total to 4,374. Iran has identified more new coronavirus cases in a day than in any time since early April, with 2,819 more people testing positive on Friday. And health authorities in South Africa say they have a backlog of more than 100,000 unprocessed tests. Sweden, which pursued a herd immunity policy, has been excluded from Norwegian and Danish plans to reopen to tourists. The UK, France, Spain and Italy have also been excluded from Greece reopening its borders to arrivals from 29 countries on 15 June. Also in Australia, there has been barely a pause to mourn the loss of the Council of Australian Governments, which had been the central federalist mechanism since 1992. It’s been replaced permanently by the national cabinet, established in March to manage the Covid-19 response.