The Canadian Food Inspection Agency has confirmed cases of MSX and dermo diseases in oysters from New Brunswick's east coast. These diseases do not pose a risk to human health or food safety but can increase oyster mortality and decrease growth rates. Dermo, previously not detected in Canada, has spread among oysters in New Brunswick. The agency is collaborating with the province and Indigenous groups to monitor the infection scale, increase testing, and manage the diseases. A 'primary control zone' has been declared for the waters off New Brunswick, restricting oyster movement or removal without a permit.