From 1954 to 1961, simian virus 40 (SV40) somehow showed up in polio vaccines, according to the American Journal of Cancer. Researchers estimate 98 million people in the US, and even more worldwide, received contaminated inoculations.

Jonas Salk, creator of the inactivated-polio vaccine, used cells from rhesus monkeys infected with SV40, according to president of the National Vaccine Information Center Barbara Fisher, who testified before the Subcommittee on Human Rights and Wellness in the US House of Representatives on this matter in 2003, after researching the situation for 10 years.

The federal government changed oral-vaccine stipulations in 1961 — which didn’t include Salk’s inactivated polio vaccine — specifically citing SV40. But medical professionals continued to administer tainted vaccines until 1963, according to Michael E. Horwin writing for the Albany Law Journal of Science and Technology in 2003. And even after 1961, the American Journal of Cancer found contaminated oral vaccines.

Although researchers know SV40 causes cancer in animals, opinions vary on a direct link between the virus and cancer in humans. Independent studies, however, have identified SV40 in brain and lung tumors of children and adults.

The Centers for Disease Control did post a fact sheet acknowledging the presence of SV40 in polio vaccines but has since removed it, according to Medical Daily.

More than 100 million Americans received a polio vaccine contaminated with a potentially cancer-causing virus.

Together We Can Survive Anything,

Dean Miller

American Survivor


P.S. Surviving in the bush can all come down to knowing how to make the most of what you are given to work with at the time.

If you can create simple spears, arrows, pegs, flotation devices, emergency accommodation and any other life-saving devices made of wood—or similar— then our job here is complete.

But if you don’t know these critical survival skills, click here.