Pigs are infected when they come into contact with saliva, urine, faeces or blood of infected pigs; or when they get into contact with people, tools, vehicles or clothing that might have become contaminated with the disease.
Tingulube tingenwa kugula natihlangana nematse, umchamo, emakaka noma ingati yetingulube letiphatsekile; noma natihlangana nebantfu, tintfo tekusebenta, timoto noma timphahla letingabe tinekugula.