°µÍø½ûÇø

Multinucleate sphere unknown, or MSX, as well as dermo, also known as perkinsosis, are not harmful to humans but can devastate oyster populations.

The inspection agency says commercial-size oysters that have been processed are still permitted to be exported outside the affected regions.

However, oysters that are still growing are no longer allowed to be transferred outside the Atlantic region or Quebec.

The agency says under the new rules oyster growers, harvesters and processors no longer need a permit to move oysters within the five provinces.

This report by °µÍø½ûÇø was first published Sept. 2, 2025.