Strains that induce no symptoms in animals will make persons Ill, and vice versa. If present in food items, it does not typically impact the taste, smell, or visual appearance from the foods. The microbes are now living in the intestinal tracts of contaminated animals and humans. FSIS inspectors https://admiralbookmarks.com/story19825066/the-2-minute-rule-for-comparison-of-botulinum-toxins