Scombroid Poisoning is associated with which toxin?

Scombroid Poisoning is associated with which toxin?

• A. Saxitoxin
• B. Shellfish Toxins
• C. Scombrotoxin
• D. Salmonella

Answer: (C)

Scombroid poisoning is caused by a toxin formed in fish when they aren’t stored properly after being caught. The toxin involved is called scombrotoxin, which is a histamine-rich compound produced by bacteria that convert amino acids (like histidine) in the fish into histamine. Because the illness stems from this histamine-like toxin in the fish, scombrotoxin is the direct association with scombroid poisoning. This differs from other options: saxitoxin is linked to paralytic shellfish poisoning, “shellfish toxins” is a broad category for various toxins in shellfish, and Salmonella is a bacterial pathogen, not a toxin.

Scombroid poisoning is caused by a toxin formed in fish when they aren’t stored properly after being caught. The toxin involved is called scombrotoxin, which is a histamine-rich compound produced by bacteria that convert amino acids (like histidine) in the fish into histamine. Because the illness stems from this histamine-like toxin in the fish, scombrotoxin is the direct association with scombroid poisoning.

This differs from other options: saxitoxin is linked to paralytic shellfish poisoning, “shellfish toxins” is a broad category for various toxins in shellfish, and Salmonella is a bacterial pathogen, not a toxin.