I had been following your thread Rosie and am full of admiration for your efforts to repatriate your brother and ensure his treatment, and I just assumed he was in safe hands and making improvements.
Your latest post though has struck a chord as 2 weeks ago my ex wife was rushed to hospital with what they thought was a stroke and immediately transferred to the Royal London stroke unit. She had been ill with flue like symptoms for a week or so. I accompanied our daughter to be with her and I can only describe her condition as being in a coma with her eyes open. They gave her a number of cat scans that were negative and were treating her with aspirin.Over a number of days she was deteriorating and they then decided to give her anti biotics and there was a very slight improvement.She was then able to start to recognise us and be more responsive.
Then she was given a MRI during which she had a convulsion, she has never had a history of that before. So they only managed 60% of the MRI but they began to change their diagnosis. They ruled out a stroke but ruled in Meninggitus or encephalomyelitis and following a lumber puncture yesterday they are going for encephalomyelitis but they wont be able to confirm it for some days. She is improving but has lost her short term memory , and has regained control of body functions. We can only hope she carries on improving and I hope you will see some improvement in your brothers condition.