It is sometimes very difficult to determine the disease, and only an expert can do this after a thorough examination of the animal and obtaining the results of all necessary tests.
Ngezinye izikhathi kunzima kakhulu ukunquma lesi sifo, kanti kuphela uchwepheshe ongakwenza lokhu emva kokuhlolwa okuphelele kwesilwane nokuthola imiphumela yazo zonke izivivinyo ezidingekayo.