No evidence’ people with coronavirus are immunised, says WHO. Virus lockdown raises tensions in France’s poorest areas. Singapore reports 931 new coronavirus cases, taking total to 13,624. Low-tech Japan challenged in working from home amid pandemic. Sri Lanka tightens its lockdown amid a surge of new coronavirus cases. No new deaths reported in China for 10th straight day. Britain tops 20,000 deaths, making it the 5th country to reach the grim milestone. Russia reports 5,966 new coronavirus cases in past 24 hours.