Foot-and-mouth disease (FMD) in cattle can be transmitted to humans. FMD is an acute infectious disease caused by the foot-and-mouth disease virus, which can cause disease in more than 70 species of even-hoofed mammals and can also infect humans, and is a human-animal infectious disease, but the incidence in humans is not high. The main source of infection of FMD is the diseased animal or the animal with the virus during the incubation period. The virus can be carried in the animal for a long time, generally cattle can carry the FMD virus for up to three years, sheep can carry the virus for up to nine months, and pigs cannot be carriers. People can be infected with FMD through direct or indirect contact with skin and mucous membranes, by consuming milk containing the virus, by inhaling aerosols containing the virus, or by ingesting a diseased animal. The main manifestations of FMD infection in humans are fever, blisters or ulcers on the skin and mucous membranes.