Perkinsus marinus is a parasite which causes Dermo in cultured and wild American oysters (Crassostrea virginica).
Dermo is a federally reportable disease listed in the Reportable Diseases Regulations. This means that all suspect cases of the disease or detections of the pathogen must be reported to the CFIA.
Current as of: 2025-07-31
| Year | Date confirmed | Location | Animal type infected | Scientific Name |
|---|---|---|---|---|
| 2025 | July 2 | Prince Edward Island | American oyster | Crassostrea virginica |
| 2025 | June 27 | Quebec | American oyster | Crassostrea virginica |
| 2025 | May 29 | Newfoundland | American oyster | Crassostrea virginica |
| 2025 | May 27 | Nova Scotia | American oyster | Crassostrea virginica |
| 2025 | April 25 | New Brunswick | American oyster | Crassostrea virginica |
| 2024 | December 13 | New Brunswick | American oyster | Crassostrea virginica |
| 2024 | December 4 | New Brunswick | American oyster | Crassostrea virginica |
| 2024 | November 25 | Nova Scotia | American oyster | Crassostrea virginica |
| 2024 | November 25 | New Brunswick | American oyster | Crassostrea virginica |
| 2024 | November 19 | New Brunswick | American oyster | Crassostrea virginica |