Which serovars are commonly associated with Salmonella infection in pigs?

Which serovars are commonly associated with Salmonella infection in pigs?

• A. Typhimurium and Choleraesuis
• B. Typhimurium and Newport
• C. Choleraesuis and Newport
• D. Typhimurium and Dublin

Answer: (A)

In pigs, the serovars most characteristically linked to Salmonella infections are Typhimurium and Choleraesuis. Choleraesuis is particularly pig-adapted and frequently causes septicemia in piglets and growing pigs, making it a classic cause of disease on swine farms. Typhimurium is a highly common, broad-host-range serovar that many pig populations encounter, often presenting as enteritis and sometimes systemic infection. Together, they represent the serovar pair most commonly observed in porcine Salmonella disease. Other serovars listed tend to be more strongly associated with other host species or have a different disease pattern in pigs, so they’re not as typical for swine compared with Typhimurium and Choleraesuis.

In pigs, the serovars most characteristically linked to Salmonella infections are Typhimurium and Choleraesuis. Choleraesuis is particularly pig-adapted and frequently causes septicemia in piglets and growing pigs, making it a classic cause of disease on swine farms. Typhimurium is a highly common, broad-host-range serovar that many pig populations encounter, often presenting as enteritis and sometimes systemic infection. Together, they represent the serovar pair most commonly observed in porcine Salmonella disease.

Other serovars listed tend to be more strongly associated with other host species or have a different disease pattern in pigs, so they’re not as typical for swine compared with Typhimurium and Choleraesuis.