Which animal is least likely to show clinical signs when infected with Foot-and-Mouth Disease?

• A. Pig
• B. Beef cow
• C. Sheep
• D. Dairy cow

Answer: (C)

Foot-and-Moot Disease shows different clinical pictures across species, with some animals more likely to display the classic signs than others. Sheep commonly have subclinical or very mild infections; vesicles may be scarce or absent, and animals can appear only mildly ill or even look normal while still shedding virus. This contrasts with cattle and pigs, where the disease tends to produce conspicuous lesions in the mouth and on the feet, along with fever and lameness, making signs easier to recognize. Because sheep can harbor and spread the virus without clear symptoms, they are the least likely to show clinical signs when infected.