Which symptom is NOT associated with bufo toxin ingestion?

Bufo toxin, primarily derived from the secretions of certain toads (notably the Colorado River toad, or Bufo alvarius), presents a variety of symptoms upon ingestion. The correct answer indicates that fever is not a typical symptom associated with bufo toxin ingestion.

Bufo toxins can lead to serious physiological effects, including cardiac arrhythmias, as they influence the heart's electrical system. This potential for arrhythmia comes from the presence of toxic compounds such as bufotenine and other cardiotoxic steroids. Hypersalivation is also a common symptom due to the irritating properties of the toxin on the mucous membranes, causing excessive saliva production. Vomiting can occur as a response to the system trying to expel the toxic substance.

Fever, while a common response to infections or various types of toxicity, is not a direct or expected symptom of bufo toxin effects. Instead, it is more associated with inflammatory or infectious processes rather than being a hallmark condition of toxin exposure, thus making it the correct choice for the symptom not associated with bufo toxin ingestion.