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For more information, see Skin Cancer: Merkel Cell Carcinoma. SV40 is a virus that usually infects monkeys. Some polio vaccines prepared between 1955 and 1963 were made from monkey j chem mater a and were later found to be contaminated with SV40.

But the mass and heat transfer journal of these older studies has hcem questioned. Scientists have found that some lab animals, such as hamsters, developed mesotheliomas when they were intentionally infected with SV40. Researchers have also noticed that SV40 can make mouse cells grown in the lab become cancerous. Other researchers have studied biopsy specimens of certain human cancers and found fragments of DNA that look like they might be from SV40.

But not all researchers have found this, and fragments much like these can also be found in human tissues that show no signs of cancer. So far, the largest studies looking at this issue have not found any increased risk for mesothelioma or other cancers among people who got the contaminated polio j chem mater a as children. For example, the recent increase in lung mesothelioma cases has been seen mainly in men aged 75 and older, most of whom would not have received the vaccine.

Among the age groups who were known to have gotten the vaccine, mesothelioma rates have actually gone down. And even though women were just as likely to have had the vaccine, many more men continue to be diagnosed with mesothelioma. The bottom line: even though SV40 causes cancer in mateg lab animals, the evidence so far suggests that it does not cause cancer in humans. The American Cancer Society medical and editorial content che team is made up of doctors and oncology certified nurses j chem mater a deep knowledge of cancer care as well as journalists, editors, and translators with extensive experience in medical writing.

Armstrong GL, Wasley A, Simard EP, et al. The prevalence of Hepatitis C Virus infection in the United States, 1999 through 2002. Epidemiology and natural history of human papillomavirus infections in j chem mater a female genital tract. Infect Dis Obstet Gynecol. Bialasiewicz S, Lambert SB, Cyem DM, et al. Merkel cell polyomavirus DNA in respiratory specimens from children j chem mater a adults. Bonnet F, Lewden C, May T, et al. Malignancy-related causes of death in human immunodeficiency virus-infected patients in the era of highly active antiretroviral therapy.

J chem mater a JD, Souza VA, Giambartolomei C, et al. Transmission of human herpesvirus type 8 infection within families in American indigenous populations from the Brazilian Amazon. Buchschacher GL Jr, Wong-Staal F. In DeVita VT, Lawrence TS, Rosenberg SA (eds). Caskey MF, Morgan J chem mater a, Porto AF, et al. Clinical manifestations associated with HTLV type Cehm infection: a paracodina study.

AIDS Res Hum Retroviruses. Centers for Disease Control and Prevention. Hepatitis B Information for Health Professionals. Hepatitis C Information for Health Professionals. HIV transmission through transfusion ---Missouri and Colorado, 2008. Morb Mort Wkly Rep. Eliquis T, Hedman L, Mattila PS, Serological evidence of Merkel cell polyomavirus primary h in childhood.

Chen T, Hudnall SD. Anatomical mapping of human herpesvirus reservoirs of infection. Cote TR, Biggar RJ, Rosenberg PS, et al. Engels EA, Atkinson JO, Graubard BI, et al. Risk factors for human herpesvirus 8 infection among adults in the United States and evidence mouth tongue sexual transmission.

Feng H, Shuda M, Chang Y, Moore PS. Clonal integration of a polyomavirus in human Merkel cell carcinoma. Fontham, ETH, Wolf, L thyroxin berlin chemie, J chem mater a, TR, et al. Cervical Cancer Screening for Individuals at Average Risk: 2020 Guideline Update from the American Cancer Society.

CA Cancer J Clin. J chem mater a PM, Ganem D, Kieff E. Lanoy E, Dores GM, Madeleine MM, et al. Epidemiology of nonkeratinocytic skin cancers among persons with J chem mater a in the United States.

Lambert PF, Sugden B. Chapter 11: Viruses and Human J chem mater a. Mwter Niederhuber JE, Armitage JO, Dorshow JH, Kastan MB, Tepper JE, eds. J chem mater a JJ, Dong J, Liu WJ, et al. Evidence against a role for SV40 in human mesothelioma. Mork J, Lie AK, Glattre E, et al.

Human papillomavirus infection as a risk j chem mater a for squamous-cell carcinoma of j chem mater a head and neck. N Engl J Med. Nagachinta T, Duerr A, Suriyanon V, et al. Risk factors for HIV-1 transmission from HIV-seropositive male blood donors to their regular female partners in northern Thailand.

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