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.
Tinguluve titluleriwa hi mavabyi lawa loko ti khumbana na marha, mitsakamiso, vulongo kumbe ngati ya leti tinga hlaseriwa kumbe loko tikhumbana na vanhu, switirhisiwa, mimovha kumbe swiambalo leswinga hlangana na mavabyi lawa.