The Simian Virus 40 (SV40) has been found in the mesothelioma cells of some patients. Between 1958 and 1963 polio vaccines were contaminated with SV40 and its estimated that between 10 and 30 million Americans could have been given the contaminated vaccine during those years. The link between SV40 and mesothelioma is yet to be established but research is being carried out to better understand the situation.
