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Vaccine contamination with Simian vacuolating virus 40, known as SV40 occurred in the United States and other countries between 1955 and 1961. SV40 is a monkey virus that has the potential to cause cancer in animals and humans, although this is considered very unlikely and there have been no known human cases. [1]
SV40 is an abbreviation for simian vacuolating virus 40 or simian virus 40, a polyomavirus that is found in both monkeys and humans. Like other polyomaviruses, SV40 is a DNA virus that sometimes causes tumors in animals, but most often persists as a latent infection.
Vaccine Ingredients: SV40. Polio vaccines used in the late 1950s and early 1960s were contaminated with a virus called simian virus 40 (SV40) present in monkey kidney cells used to grow the vaccine.
31 Ιουλ 2004 · However, two Merck researchers, Ben Sweet and Maurice Hilleman, soon identified the rhesus virus later named SV40—the carcinogenic agent that had eluded Eddy. In 1963, US authorities decided to switch to African green monkeys, which are not natural hosts of SV40, to produce polio vaccine.
23 Ιουν 2023 · But there’s no evidence to support the claim that the COVID-19 vaccines contain monkey DNA nor the virus known as SV40, according to public health officials and the lead researcher of a recent study cited in some of the social media posts.
Some of the polio vaccine administered from 1955–1963 was contaminated with simian virus 40 (SV40). The virus came from the monkey kidney cell cultures used to produce the vaccine. Most, but not all, of the contamination was in the inactivated polio vaccine (IPV).
1 Μαρ 2022 · The extensive poliovirus vaccination programs of the late 1950s and early 1960s lead to the accidental infection of millions of individuals with an unknown virus (SV40) possessing cancer-causing potential. This mistake sparked a massive research enterprise to...
