Foot-and-mouth disease (FMD) is a serious disease that does resemble sore mouth and can affect sheep, goats, cattle, swine, and other “cloven-hoofed” animals. Although FMD has not occurred in the United States since 1929, if there are symptoms you observe in your animals that appear more serious than sore mouth, immediately report it to your veterinarian, to State or Federal animal disease control officials, or to your county agricultural agent.