Friday, July 13, 2018

papillomavirus -

Papillomavirus was first identified in the 20th century, when it was shown that papilloma, can be transmitted between individuals by infectious agents. In 1935, Francis Peyton Rous, who had previously demonstrated the presence of a cancer-causing sarcoma virus in chickens, showed that papilomaviruses can cause skin cancer in infected rabbits. This is the first demonstration that viruses can cause cancer in mammals.