Strains that induce no symptoms in animals may make people sick, and vice versa. If present in food items, it does not typically have an affect on the flavor, smell, or overall look of the food items. The microbes are in the intestinal tracts of infected animals and humans. https://wavesocialmedia.com/story5421041/the-smart-trick-of-how-toxic-is-botulinum-toxin-that-nobody-is-discussing