Cutar sankarau a cikin karnuka yawanci ana haifar da ita ne ta hanyar cututtukan parasitic, ƙwayoyin cuta ko ƙwayoyin cuta. Ana iya rarraba alamun gaba ɗaya zuwa nau'i biyu, ɗayan yana jin daɗi kuma yana bumping a kusa, ɗayan kuma raunin tsoka, damuwa da kumburin haɗin gwiwa. A lokaci guda kuma, saboda cutar tana da tsanani sosai kuma tana da yawan mace-mace, don haka ya zama dole a gaggauta aika kare zuwa asibitin dabbobi don magani, don kada a jinkirta lokacin jiyya.

1. Parasitic kamuwa da cuta
   Idan kare ya dade ba a cire tsutsotsi ba, wasu cututtuka na ciki kamar su roundworms, heartworms da hydatids na iya haifar da cutar sankarau lokacin da suke ƙaura ta hanyar kwakwalwa da tsarin juyayi na tsakiya. Babban abin da ke faruwa shine karnuka suna bugun kawunansu a ƙasa, suna tafiya cikin da'ira da sauran alamomi, waɗanda ke buƙatar amfani da madauwari don cire jikin tsutsa, kuma suna yin kyakkyawan aikin rigakafin kamuwa da cuta.

1. Cutar cututtuka
   Mafi yawan abin da ke haifar da cutar sankarau a cikin karnuka shine kamuwa da cuta na kwayan cuta wanda yawanci ke rayuwa a idanu, hanci ko baki. Lokacin da kamuwa da cuta ya faru a daya daga cikin gabobin, kwayoyin cutar na iya yadawa kuma su cutar da kwakwalwa. Canja wurin kwayoyin cuta irin su endotitis na bakteriya, ciwon huhu, endometritis da sauran cututtukan kwayan cuta ta hanyar jini na iya haifar da kamuwa da cuta da za a iya magance su ta hanyar maganin rigakafi, diuretics, antibacterial da anti-inflammatory.

1. Kamuwa da cuta
   Lokacin da kare yana da distemper da rabies, waɗannan cututtuka na iya lalata tsarin rigakafi na kare. Kwayar cutar ta shiga cikin tsarin juyayi kuma yana haifar da cutar sankarau. Wannan halin da ake ciki ba shi da takamaiman magungunan magani gabaɗaya, zamu iya ƙoƙarin yin amfani da magungunan ƙwayoyin cuta, magungunan ƙwayoyin cuta da sauran magunguna don magani.