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vet0191 - LYME DISEASE Mary Grace Stobierski DVM MPH DACVPM...

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LYME DISEASE Mary Grace Stobierski, DVM, MPH, DACVPM Michigan Dept. Community Health
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Borrelia burgdorferi
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Lyme Disease/ History 1908 Europe: Bannworth’s syndrome, chronic skin lesions associated with tick bites, later found to be penicillin responsive 1975 First description of Lyme arthritis - Old Lyme, CT. Cluster in children. 1983 Isolation of spirochetes from blood, CSF, and skin of patients with Lyme borreliosis Spirochetes isolated from Ixodes sp. ticks Willy Burgdorfer identified spirochetes as belonging to genus Borrelia
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National Case Definition F or Epidemiologic Surveillance A case is defined as: A person with Erythema Migrans at least 5 cm in diameter; or A person with at least one late manifestation and laboratory evidence CDC-1997
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Reported Cases of Lyme Disease, United States 1982-1999 0 2000 4000 6000 8000 10000 12000 14000 16000 18000 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
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Human Case Reporting P h y s i c i a n L o c a l H e a l t h D e p t S t a t e H e a l t h D e p t C D C
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0 20 40 60 80 100 120 140 160 180 1984 1987 1990 1993 1996 1999 Year Reported Reported Lyme Disease Cases in Michigan 1984-2000 7 8 2225 76 180 148 73 52 43 44 25 20 27 18 11 23 1991: New Case Definition
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Ixodes scapularis (formerly, I. dammini)
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Adult, female I.scapularis
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