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Unformatted text preview: 6. An increase in life span permits a new disease to develop Remember, the causative agent itself is usually not new, but just one that has not previously been recognized. Examples ( Table 14.6 P. 426 for others): MICROORGANISM YEAR DISEASE BACTERIA Borrelia burgdorferi 1975 Lyme disease Legionella pneumophila 1976 Legionnaires disease Escherichia coli O157:H7 1982 Food poisoning involving production of dangerous toxins FUNGI Pneumocystis carinii 1981 Pneumonia, esp. in AIDS patients PROTOZOA Cryptosporidium parvum 1976 Cryptosporidiosis VIRUSES HIV 1983 AIDS Hepatitis C virus 1989 Hepatitis Hantavirus 1993 Hantavirus pulmonary syndrome Ebola virus 1975 Ebola fever West Nile virus 1999 West Nile encephalitis PRIONS Bovine spongiform encephalitis agent 1996 Mad cow disease...
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- Fall '09