Oxford University

European Union leaders’ negotiations extended into a fourth day on Monday as they try to hammer out a deal to revive economies battered by the coronavirus pandemic. Also, a potential coronavirus vaccine being developed by scientists at Oxford University shows strong immune response and no early safety concerns. And in Brazil, President Jair Bolsonaro said that lockdown measures used to curb the spread of the novel coronavirus “kill” and have “suffocated” the country’s economy.