SV40 is a known cancer causing virus
SV40 virus’s can transfer from monkeys to humans
http://www.pnas.org/content/102/17/5905 pic
In June 1981, the first cases of what was later called acquired immunodeficiency syndrome (AIDS) in the United States were reported in MMWR (1).
https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5521a2.htm
https://www.ncbi.nlm.nih.gov/m/pubmed/16288015/