“…Thus, in kidney or heart transplant patients, HPV has been found in skin tumours, with a great variety of types [1, 2, 4, 5, 6, 11, 16, 18, 31, 33], often with viral co-infections (cytomegalovirus, herpes simplex virus, etc.) in many cases [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 41, 43, 44, 45, 46, 47]. Several studies have reported a high prevalence of HPV DNA in transplant squamous cell carcinoma ranging from 69 to 91% [1, 2, 3, 7, 9, 11, 41].…”