Flu shots linked to cancer




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Flu vaccines are increasingly manufactured in cell lines that are actually or potentially oncogenic, and FDA guidelines allow high levels of contamination and no spot checks are carried out says Dr. Sherri J Tenpenny.

An oncogene is a gene that has the potential to cause cancer.[1] In tumor cells, they are often mutated or expressed at high levels.[2]

Most normal cells undergo a programmed form of death (apoptosis). Activated oncogenes can cause those cells that ought to die to survive and proliferate instead.[3] Most oncogenes require an additional step, such as mutations in another gene, or environmental factors, such as viral infection, to cause cancer. Since the 1970s, dozens of oncogenes have been identified in human cancer. Many cancer drugs target the proteins encoded by oncogenes.[2][4][5][6]

Since 1998, the FDA and its subdivision, the Centers for Biological Evaluation and Research (CBER), have been drafting regulations to allow use of both oncogenic and tumorigenic cell lines to be used in vaccine production. The FDA is fully aware that the new cell lines, especially the PER.C6 cells, have substantial risks, including the risk of potentially deadly adventitious (stray) viruses making their way into shots.

For example, the FDA acknowledges that the SV 40 virus (simian virus 40 from monkey kidney cells) was in the early polio vaccines and its risks [7]: “The experience in the early 1960s with SV40 contamination of poliovirus and adenovirus vaccines and the continuing questions regarding whether SV40 could be responsible for some human neoplasms [cancers] underscores the importance of keeping viral vaccines free of adventitious agents.

“This is particularly important when there is a theoretical potential for contamination of a vaccine with viruses that might be associated with neoplasia [cancer]…It is unclear whether cell substrates have a greater or lower risk [of contamination] than other types of cells However, if their growth in tissue culture is not well controlled, there may be additional opportunities for contamination…”

And it gets worse. The same FDA memo goes on to say [7]: “In addition to the possibility of contamination of cell substrates with adventitious viruses…the use of immortalized, neoplastic human cells to develop [vaccines] raises theoretical concerns with regard to possible contamination with TSE/BSE agents.”

TSE is Transmissible Spongiform Encephalopathy, a condition that includes a group of rare degenerative brain disorders characterized by tiny holes in the brain tissues, giving a “spongy” appearance when viewed under a microscope. When this condition occurs in cows, it is called Bovine Spongiform Encephalopathy, commonly known as “mad cow disease.” In a study published in 2004, researchers found that any cell line could potentially support the propagation of TSE agents [8].

Clearly, CBER is aware and disquieted over the carcinogenic potential of animal cells in vaccines because they require manufacturers to take “every available precautionary step” to eliminate the suspicious cells from the vaccine final product. The FDA also admits concerns about cancer-causing possibility from all types of cell lines. The question begging to be answered is, knowing the potential risks of using cell lines to create vaccines, why are cell line technologies allowed at all?

About the writer:

Dr. Sherri J Tenpenny is a Doctor of Osteopathic Medicine (D.O.) trained in the USA. Visit her website http://drtenpenny.com/default.aspx

Internet site reference: http://www.i-sis.org.uk/fluVaccinesCancerRisks.php


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