By Martin Bagot Hundreds of doctors plan to sue the NHS, claiming a lack of proper PPE left them disabled with Long Covid. The case centres on an NHS diktat to downgrade the level of masks when the virus took hold. Staff were only required to wear blue surgical masks, plastic aprons and gloves. They claim they are facing financial ruin and that authorities should have known they were being placed at risk. Dr Kelly Fearnley, 37, co-founded Long Covid Doctors for Action (LCD4A) to claim negligence. She was working at Bradford Royal Infirmary in November 2020 when she got Long Covid. She is still…