Magana: Kwayoyin cuta sune sanannen sanadin cutar kansa a cikin mutane da sauran nau'ikan halittu. Cutar kansar kwayar cuta tana faruwa ne kawai a cikin 'yan tsirarun mutane (ko dabbobi). Kwayoyin cutar kansar sun fito ne daga wasu nau'ikan ƙwayoyin cuta, gami da ƙwayoyin RNA da DNA, don haka babu wani nau'in "oncovirus" guda ɗaya (kalmar da ba ta dace ba da aka yi amfani da ita a asali don sauya retroviruses). Ci gaban ciwon daji ya dogara ne da dalilai daban-daban kamar rigakafin mai masauki da maye gurbi a cikin mai masaukin. Kwayoyin da aka yarda da su haifar da cutar kansa ta mutum sun haɗa da wasu nau'ikan kwayoyin halittar papillomavirus na mutum, hepatitis B, hepatitis C virus, Epstein <unk>Barr virus, Kaposi sarcoma-associated herpesvirus da cutar lymphotropic ta mutum. Mafi yawan kwanan nan da aka gano cutar kansa ta mutum ita ce kwayar cutar ƙwayoyin poly (Merkelomavirus) wanda ke haifar da mafi yawan lokuta na cututtukan fata da ake kira
Kwayar cuta