An investigation conducted by New Brunswick’s province has concluded that environmental substances such as herbicides and heavy metals are unlikely to be the cause of neurological symptoms reported by numerous individuals in the region. The final report on the inquiry into 222 cases of “undiagnosed neurological illness” was released by Dr. Yves Léger, the chief medical officer of health.
The investigation, initiated in March, aimed to address concerns raised by Moncton neurologist Dr. Alier Marrero in 2023 regarding elevated levels of herbicides like glyphosate and glufosinate, as well as various metals such as aluminum, arsenic, lead, and mercury in some patients. Dr. Léger stated that the findings do not indicate that exposure to specific environmental substances was a significant factor in the illness among the majority of patients studied.
The report did not identify the root cause of the sickness experienced by individuals exhibiting symptoms ranging from muscle spasms and hallucinations to memory loss and behavioral changes. However, it suggested that patients are likely suffering from diagnosable conditions, as indicated by previous reports and scientific studies.
Despite limitations in the data collected by Dr. Marrero, the report showed that the majority of test results for herbicides and heavy metals were within expected ranges. The report also made three recommendations to support patients in receiving accurate diagnoses and appropriate care. Additionally, the provincial government has sought the assistance of the Public Health Agency of Canada to review individual patients’ data for further insights.
Patient co-liaison Sarah Nesbitt expressed concerns about the lack of follow-up testing but remains hopeful that ongoing efforts will lead to better understanding and care for affected individuals. Dr. Léger emphasized the importance of implementing the recommendations promptly to support patients and address their health needs effectively.