Interview: UK gov't urged to be cautious over spread of Delta variant Xinhua 10 Jun 2021, 02:18 GMT+10 LONDON, June 9 (Xinhua) -- The British government needs to remain cautious over the Delta coronavirus variant first identified in India so that hospitals can focus on non-related coronavirus patient enquiries, according to a British doctor based in northern England. The Delta variant has made opening up England all the more difficult as cases continue to rise across the country. But for doctors, they are noticing a backlog of patients with non-coronavirus appointments and for some patients, this has led to their conditions being diagnosed as worse if they had not been seen sooner.