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The US government has added 17 new substances to its list of cancer-causing agents which now totals at 246. Viruses were for the first time named as culprits. Chronic Hepatitis B and C infections have been added to the list due to their ability to cause liver cancer. Certain human papilloma viruses have been added due their associated risk of cervical cancer. Other additions include: x-rays and gamma radiation (may cause leukemia and cancer of thyroid, breast, lung, salivary gland, stomach, colon, bladder, ovaries, central nervous system and skin) and neutrons. Substances that are likely to be human carcinogens added to the list include: naphthalene (may cause respiratory system cancers); heterocyclic amine compounds such as MeIQ, MeIQx and PhIP (may cause colon, liver, mouth and skin cancer); lead (may cause lung and stomach cancer); cobalt sulfate (may cause adrenal gland and lung cancer); nitromethane; diazoaminobenzene; nitrobenzene; thiodianiline and 1-amino-2 and 4-dibromoanthraquinone.
Source: summary of medical news story as reported by CTV
About: 17 substances added to America's list of carcinogens
Date: 31 January 2005
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