Allograft diseases
Further information: clonally transmissible cancer
Allograft diseases are those in which cancerous cells are spread between individuals of the same species by physical contact.
To date only three such diseases have been discovered, these are devil facial tumour disease found in the Tasmanian devil, Contagious reticulum cell sarcoma found in Syrian hamster and canine transmissible venereal tumour which infects dogs.
This mechanism of pathology is different from transmission of viruses which causes cancer, called Oncoviruses.
See also
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