White cysts in the muscle of salmon could be caused by Henneguya salminicola also called "tapioca disease". It affects the texture of the meat but is not a health concerns for people. White cysts could also however, be from a tape worm. That is a human health concern. Guidance on how to check the cysts to confirm and how to prepare food so it is safe to eat, is provided.
About 60 people from the Dzawada̱ʼenux̱w First Nation have been evacuated to Alert Bay after blue-green algae was found in their well water.
In 2020, contamination of the community water well by cyanobacteria caused the community to evacuate for 26 days. How the well was contaminated is unknown.
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