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6 Cards in this Set

  • Front
  • Back
Epidemiology
-Infects cows and other grazing animals
-Zoonotic: can infect humans who have close contact with infected animals
Etiology
Caused by Bacillus anthracis, an endospore-forming soil bacterium
Transmission: 3 Types
1. Skin (cutaneous)
2. lungs (inhalation)
3. digestive (gastrointestinal)
Pathogenesis
1. Endospores reach tissues, germinate, secret necrotizing toxin
2. On Skin: form eschars – pustular lesions which fill with black fluid
3. Reaches blood = septisemia, usually fatal
Pathogenesis (Effects w/ signs and symptoms)
Signs and symptoms may appear in few days or several weeks; if not treated within 48 hours nearly 100% mortality
Treatment
A. Rx: Cipro, penicillin, doxycycline for 4-8 weeks
B. Vaccine (reserved for military)