A suspected neurological disorder is concerning doctors in one part of Canada.
New Brunswick residents first learned of an investigation into an apparent cluster last week, after a leaked memo asked physicians to be alert for symptoms similar to Creutzfeldt-Jakob disease, according to The Guardian.
Creutzfeldt-Jakob disease is a rare, degenerative brain disorder which can lead to dementia and death.
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Symptoms of the mystery brain disorder appear to be memory loss, abnormal jerking movements and vision loss.
In order for a patient to be included in the suspected cluster, they must undergo a series of tests including brain imaging, metabolic and toxicology tests and spinal taps.
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Doctors have also looked into the patients' histories to rule out other possible diseases.
Scientists are working to determine if they are dealing with a previously unknown disorder or a series of unrelated symptoms.
