Contaminants

Contaminants

Beginning with the very first vaccine, smallpox vaccine, contamination has literally been a constant “dirty little secret”. The great enthusiasm for the Salk polio vaccine and the later Sabin oral polio vaccine was dampened when it became common knowledge that, as they were vaccinated, millions had unknowingly received SV40, a carcinogenic monkey virus. In more recent times, Health Canada has found it necessary to test vaccines for mad cow disease. While required testing by vaccine manufacturers prevents some contaminants from reaching the public (as happened in England when influenza vaccine being made for the USA was found contaminated with Listeria), obviously, not every single dose can be tested.

• SV-40 Contamination of Polio virus Vaccines (a brief but detailed account)
• Vaccination: What You Need to Know — see section titled ‘Vaccine Contaminants – Viral Soup, Anyone?’
• Rogue Virus in the Vaccine – Early Polio Vaccine Harbored Virus Now Feared to Cause Cancer in Humans