Detections of MSX and Dermo in oysters in Quebec

By cmar admin | July 4, 2025

Statement The Canadian Food Inspection Agency (CFIA) has confirmed the presence of the aquatic animal diseases multinucleate sphere unknown (MSX) and Dermo (also known as Perkinsosis) in oyster samples collected in Chaleur Bay, Québec. MSX and Dermo do not pose risks to human health or food safety, but they can cause increased oyster mortality and…

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Detection of MSX and Dermo in oysters in New Brunswick

By cmar admin | November 21, 2024

Statement November 21, 2024 – Ottawa, Ontario – Canadian Food Inspection Agency The Canadian Food Inspection Agency (CFIA) has confirmed the presence of two oyster diseases in samples collected in Spence Cove, New Brunswick. The first, multinucleate sphere unknown (MSX) is caused by Haplosporidium nelsoni. The second, Dermo (also known as Perkinsosis), is caused by…

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