Dhaka, Dec. 14 -- The UK is facing an "unprecedented wave of super flu", a health chief has warned, as Prime Minister Keir Starmer Friday denounced "reckless" plans by doctors to launch a five-day strike next week."The 'super flu' epidemic sweeping the country means this is the NHS's most precarious moment since the pandemic," Starmer wrote in The Guardian daily referring to the National Health Service.The resident doctors strikes just before Christmas "should not happen. They are reckless. They place the NHS and patients who need it in grave danger," he added.NHS figures published on Thursday showed flu cases at a record level for the time of year.The number of cases jumped 55 percent in a week to an average of 2,660 patients in hospital...