By Joe Smith A study has found more than a quarter of people who havepulmonary tuberculosis (TB) do not report any symptoms at all. Shocking new research from Amsterdam University Medical Center (UMC), also found that 80 per cent of patients with TB do not have a persistent cough. This is one of the key symptoms doctors use to identify the illness but now medics are being urged to rethink how they diagnose TB. Typical symptoms of the infection, which usually affects the lungs, can include a cough that lasts for more than three weeks, feelings of tiredness or exhaustion, high temperature or nig…