Strains that cause no symptoms in animals will make persons sick, and vice versa. If current in meals, it does not ordinarily have an impact on the taste, scent, or physical appearance of the foodstuff. The bacteria reside in the intestinal tracts of contaminated animals and humans. FSIS inspectors https://allkindsofsocial.com/story5121584/botulinum-toxin-mechanism-an-overview