Public Health Sudbury & Districts (PHSD) is cautioning the community this fall about the potential threat of blastomycosis, a rare yet potentially severe lung infection.
According to Dr. Emily Groot, PHSD’s associate medical officer of health, blastomycosis is contracted by inhaling spores from a fungus known as blastomyces, which thrives in soil, fallen leaves, and logs. Dr. Groot noted that the fungus is prevalent in northern Ontario, particularly in northwestern Ontario and Manitoulin Island, favoring damp and acidic soil common in the region due to coniferous trees.
Despite the risk of infection, Dr. Groot emphasized the importance of enjoying the outdoors in the region while being aware of potential symptoms associated with blastomycosis. This year, PHSD has reported six cases in the region, which Dr. Groot described as typical.
Not all cases of blastomycosis are severe, with some individuals unknowingly inhaling spores, while others may experience symptoms similar to pneumonia or a cold but can fight off the infection with a strong immune system. However, the infection can progress to affect other organs and the central nervous system, potentially leading to fatal consequences if left untreated.
To protect themselves, individuals are advised to wear masks during activities like gardening, hiking, or construction work. Early detection is crucial, as symptoms may take up to three months to manifest. Dr. Groot stressed the importance of informing healthcare providers about any potential exposures to soil, leaves, decaying wood, or outdoor activities when experiencing pneumonia-like symptoms that do not improve with standard care.
In a separate incident, an outbreak of blastomycosis in Constance Lake First Nation between November 2021 and January 2022 resulted in the deaths of five individuals. Although outside of PHSD’s jurisdiction, the recommendations from a coroner’s jury following the incident were shared with local public health agencies across Ontario. PHSD accepted these recommendations and responded with a plan to implement them, aiming to prevent similar tragedies in the future.
Dr. Groot expressed enthusiasm for the ongoing initiatives but acknowledged the challenging circumstances that led to their development. She highlighted an Indigenous data sovereignty project at PHSD, emphasizing its potential to guide culturally sensitive approaches to collecting and utilizing Indigenous health data for public health initiatives.