Scombroid toxin and ciguatoxin caused the greatest number of illnesses, hospitalizations, and death. Characterizing marine toxin outbreaks can help guide prevention efforts.
Scientists from the National Research Council of Canada (NRC), alongside collaborators from the U.S. and Norway, have finally discovered the algal source of ciguatoxin in Caribbean waters. The findings will make it possible to develop methods and standards to help food safety laboratories monitor and manage the risk of ciguatera poisoning.
Ciguatera toxin, which does not break down during cooking, can cause severe foodborne illness in humans who consume contaminated reef fish that feed on toxic microalgae. Climate change is altering algal and seaweed growth patterns, which may impact the rate of ciguatoxin accumulation by these fish species.
