Inxalenye yangaphakathi yesilayidi sesilayidi esingabonakaliyo kwiso lenyama yinkqubo yayo yokuthwala, ehambelana ngokuthe ngqo nomthamo wayo wokuthwala. Okwangoku, kukho izilayidi zebhola zentsimbi, izilayidi zerola kunye nezilayidi zevili lesilicon kwith