FREDERICTON—A neuropathologist who examined the deaths of eight people in New Brunswick initially described as having a mysterious neurological disease says the deaths were actually due to known diseases. A summary of the study led by Dr. Gerard Jansen of the University of Ottawa, posted this month on the Canadian Association of Neuropathologists website, says the original cases were “misclassified clinical diagnoses.” In March, New Brunswick health officials alerted the province’s doctors, nurses and pharmacists about a cluster of residents with an unknown and potentially new neurological syndrome with symptoms similar to those of Creutzfeldt-Jakob disease. Jansen’s study indicates that those who died had diseases that included known neurodegenerative diseases and cancers. He identified health issues that included Alzheimer’s disease, metastatic cancer, frontotemporal degeneration, Lewy body disease and vascular disease. The abstract notes the cluster had been reported at around 50 cases, and eight people in that group have died …