CDC is ACTIVELY removing historical archived information but cached and found
https://web.archive.org/web/20130522091608/http://www.cdc.gov/vaccinesafety/updates/archive/polio_and_cancer_factsheet.htm
CDC - Concerns - Cancer, Simian Virus 40 (SV40), and Polio Vaccine Fact Sheet - Vaccine Safety
The majority of scientific evidence suggests that SV40-contaminated vaccine did not cause cancer.
https://web.archive.org/web/20130522091608/http://www.cdc.gov/vaccinesafety/updates/archive/polio_and_cancer_factsheet.htm