Contaminants. No way is an African monkey kidney soup going to be injected into my children either. No real effort is being made to screen vaccines for all contaminants and it's left to the makers!
"FDA virologist Peter Reeve........ acknowledged that the FDA suspended its own independent tests of vaccine purity 15 years ago, leaving it entirely up to the manufacturers to ensure the vaccine is contaminant free." 'The Virus and the Vaccine': Atlantic Monthly (now a book)
Numerous organisms (Acanthamoeba, Mycoplasma, Simian cytomegalovirus, stealth virus) can be in the vaccines and not much effort if going on to find them, for obvious reasons. SV40 cancer causing virus is now being found in tumours, and is still in polio vaccines:
"Stanley Kops....has produced proof positive that the oral polio vaccine has always been contaminated with SV-40, a monkey virus which has been linked by the FDA and other organisations with cancers such as mesothelioma and meduloblastoma. Since 1963, we have been assured that polio vaccines have not contained this deadly contaminant. Stanley Kops shows that not only is this not the case, but that the vaccine regulators who are charged with keeping our families safe, have known all along that SV-40 was never removed from vaccines."
Meryl W. Dorey
"Had my mother and father known that the poliovirus vaccines of the 1950s were heavily contaminated with more than 26 monkey viruses, including the cancer virus SV40, I can say with certainty that they would not have allowed their children and themselves to take those vaccines. Both of my parents might not have developed cancers suspected of being vaccine-related, and might even be alive today. "----Dr Howard B. Urnovitz PhD