Several recalls have been issued and parts of B.C.'s coast have been closed to harvesting while health and food inspection officials investigate.

Vancouver Coastal Health said 50 people had presented with acute gastrointestinal illness since Monday, after eating the shellfish raw.

Alberta Health Services (AHS) is reminding Albertans about the risks of eating raw shellfish after an investigation was launched into 10 cases of gastrointestinal illness linked to the consumption of raw oysters in Edmonton.