Dr Sudarshini Ramanathan is an adult neurologist and clinician-scientist, with subspecialty expertise in autoimmune neurological disorders. Dr Ramanathan is a staff specialist neurologist at Concord Hospital in Sydney, where she diagnoses and treats patients with suspected autoimmune neurological conditions. After subspecialising in neurology and being awarded her FRACP, she completed her PhD in neuroimmunology at the University of Sydney, and a post-doctoral fellowship at the University of Oxford. Dr Ramanathan has received 14 continuous years of NHMRC fellowship funding, and is currently an NHMRC Investigator Fellow. She heads the Translational Neuroimmunology Group at the Faculty of Medicine and Health, University of Sydney, and leads a translational fundamental science and clinical research program. Her research program is focused on understanding underlying disease pathogenesis to guide therapeutic approaches, and improving the diagnosis and treatment of autoimmune neurological disorders including demyelination and encephalitis. In 2014, Dr Ramanathan established the Australasian MOGAD Study Group, and has since been the lead investigator of this consortium which has now expanded to include 150 clinicians from over 45 centres, evaluating over 700 children and adults with MOGAD. Her work has facilitated the adoption of laboratory biomarkers into routine clinical use for diagnosis, and the development of diagnostic criteria and therapeutic recommendations for some of these conditions in order to reverse disability and improve outcomes.