Which condition can increase shedding of Salmonella in animals?

Which condition can increase shedding of Salmonella in animals?

• A. Sleep
• B. Vaccination
• C. Nutrition deficiency
• D. Stress

Answer: (D)

Stress increases Salmonella shedding in animals because the stress response raises hormones like cortisol that suppress immune function and disrupt gut integrity and the balance of gut microbes. This creates conditions in the intestinal tract that allow Salmonella to replicate more readily, leading to higher amounts being shed in feces and a greater risk of spreading to others. Sleep itself isn’t a direct driver of shedding in typical animal settings, while nutrition deficiency can worsen susceptibility but doesn’t explain the direct increase in shedding as consistently as stress does. Vaccination, on the other hand, tends to reduce shedding by boosting immunity.

Stress increases Salmonella shedding in animals because the stress response raises hormones like cortisol that suppress immune function and disrupt gut integrity and the balance of gut microbes. This creates conditions in the intestinal tract that allow Salmonella to replicate more readily, leading to higher amounts being shed in feces and a greater risk of spreading to others. Sleep itself isn’t a direct driver of shedding in typical animal settings, while nutrition deficiency can worsen susceptibility but doesn’t explain the direct increase in shedding as consistently as stress does. Vaccination, on the other hand, tends to reduce shedding by boosting immunity.