January 7, 1911 (Gengxu the twelfth lunar month, seventh day), Rolls is the first to discover cancer virus.


Francis Peyton Rouse In 1911 January 21, 2010. According to a report released today by Francis Peyton Rouse, cancer tumors are caused by viruses. This formulation is the first time in medical history. (History the cn) Rolls of the Rockefeller Institute in New York City physician and virologist. (Lssjt.cn)
1910, one chicken gave Rolls a developmental exotic chickens. From this cancerous tumor of the chickens, he extracted the infectious agents, and Note to a few healthy chicken body, so cancer-like pass a few healthy chicken. Since such pollutants can penetrate the thin film, it seems that it is the smallest of all microorganisms - viruses.
Rolls doctors graduated from Johns - Johns Hopkins University in Baltimore, Maryland. Medical qualifications, he was perfect, but the results of his research in the scientific community seems it controversial. Yet no evidence that the cancer of human or animal infectious, so there is no reason to be overly alarmed.