Doctors may be missing signs of serious and potentially fatal brain disorders triggered by coronavirus, as they emerge in mildly affected or recovering patients, scientists have warned. Neurologists are today publishing details of more than 40 UK Covid-19 patients whose complications ranged from brain inflammation and delirium to nerve damage and stroke. In some cases the neurological problem was the patient's first and main symptom. The cases, published in the journal Brain, reveal a rise in a life-threatening condition called acute disseminated encephalomyelitis (Adem), as the first wave of infections swept across Europe. At University College London's Institute of Neurology, Adem cases rose from one a month before the pandemic to two or three a week in April and May. One woman, who was 59, died of the complication. A dozen patients had inflammation of the central nervous system, 10 had brain disease with delirium or psychosis, eight had strokes and a further eight had peripheral