'A child is brought in due: -changes in behavior -mild intellectual deterioration -''laziness'' Over next few days he becomes clumsy and develops involuntary jerky movements. CSF analysis shows no abnormality other than oligoclonal bands of IgG. He dies two years later. 1. What condition does he likely have? 2. What is the most likely causative organism responsible for this illness?'

Neurology is the branch of medicine that focuses on the study, diagnosis, and management of conditions affecting the nervous system.