Response to MSX and Dermo in oysters

We are responding to the presence of multinucleate sphere unknown (MSX) and Dermo in oysters.

In Canada, MSX and Dermo are federally reportable diseases. All suspected cases must be reported to us.

MSX and Dermo are not food safety concerns.

Services and information

Oyster movement controls for New Brunswick and Nova Scotia

Map of primary control zones in New Brunswick and Nova Scotia, permits and conditions

Oyster movement controls for Prince Edward Island

Map of the MSX declared area, permits and conditions

Facts about MSX (disease caused by Haplosporidium nelsoni)

General information about MSX in oysters

Facts about Dermo (disease caused by Perkinsus marinus)

General information about Dermo in oysters