By Graeme Murray & Isobel Williams Brain fog among long Covid patients is ‘likely caused by leaky blood vessels in the brain’, a new study of the disease has found. Irish researchers discovered the confusion and cognitive decline in some patients battling longer lasting effects of the virus can be caused by disruption to blood vessels in the brain. There have been 200 reported symptoms to date where patients report lingering symptoms. They include such fatigue, shortness of breath, problems with memory and thinking and joint or muscle pain. Scientists from Trinity College Dublin say long Covid…