Strains that lead to no symptoms in animals might make folks sick, and vice versa. If existing in foodstuff, it does not typically have an effect on the flavor, scent, or physical appearance on the foods. The bacteria are in the intestinal tracts of contaminated animals and humans. FSIS https://bookmarknap.com/story10215370/not-known-factual-statements-about-botulinum-toxins-found-in