No evidence to support neurological syndrome of unknown cause in New Brunswick, study finds

A new research study has found no evidence to support evidence of a neurological syndrome of unknown cause in a cohort of patients from New Brunswick while a separate scientific review is under way on the issue in the province.The findings, released Wednesday by the peer-reviewed journal JAMA Neurology, are based on research conducted on a cohort of patients with a diagnosis of neurological syndrome of unknown cause (NSUC) who received second, independent clinical assessments or neuropathological examinations between 2020 and 2025.