Poultry and swine can be effectively vaccinated against Salmonella.

• A. True
• B. False
• C. Not sure
• D. Not applicable

Answer: (A)

Vaccination can effectively reduce Salmonella carriage and shedding in poultry and swine, especially when used as part of an integrated control program. In poultry, vaccines against common serovars like Salmonella Enteritidis are used in breeder and layer flocks to lower intestinal colonization and environmental contamination, which helps protect humans in the food supply. In swine, vaccines against serovars such as Salmonella Choleraesuis are available and can lessen both disease and intestinal carriage, improving overall herd load when combined with good biosecurity, management, and hygiene. It’s important to note that no vaccine guarantees complete protection against all serovars or in every situation; effectiveness varies with vaccine type, administration, and exposure. So, stating that poultry and swine can be effectively vaccinated against Salmonella is true, acknowledging these nuances.