Which statement about Salmonella infections in dogs and cats is correct?

• A. Many clinically important serotypes exist; disease is uncommon but can cause diarrhea with or without blood, fever, and depression; associated with contaminated food or raw meat.
• B. It always causes severe septicemia in all dogs and cats.
• C. It only occurs in animals with compromised immune systems.
• D. Infection is confined to poultry and does not affect dogs or cats.

Answer: (A)

Salmonella infections in dogs and cats are primarily enteric illnesses caused by many serotypes, not a single one. They are not extremely rare and are often linked to ingesting contaminated food, including raw meat diets or poorly handled animal products. The typical clinical picture is gastrointestinal: diarrhea that can be with or without blood, sometimes accompanied by fever and general signs of illness such as depression or lethargy. While septicemia can occur, especially in very young, stressed, or immunocompromised animals, it is not the norm for most cases. Animals with otherwise normal immune systems can still develop enteritis when exposed to the organism, so the disease is not restricted to those with weakened immunity. Also, Salmonella infections are not confined to poultry and can affect dogs and cats through contaminated foods or environments. This description matches the statement that there are multiple clinically important serotypes, disease is not uncommon, and the GI signs (diarrhea with or without blood, fever, depression) are associated with contaminated food or raw meat.