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15 Cards in this Set
- Front
- Back
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Name the most common pathogens in dog bites?
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Pasteurella sp
Staph aureus Strep sp (alpha & beta hemolytic) Capnocytophaga canimorsus anaerobes |
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What organism causes Cat Scratch Fever?
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Bartonella henselae
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What pathogens are in rat bites?
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Streptobacillus moniliformis
Spirilium minor |
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Pasteurella multocida
Pasteurella canis |
Gram - coccobacilli
non-motile toxin-producing Disease: cellulitis, lymphadenitis Cat bite=osteomyelitis, septic arthritis due to penetration |
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Capnocytophaga canimorsus
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Gram - bacilli
Requires CO2 for growth Substance modifies PMN chemotactic Disease: septicemia, meningitis |
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Common anaerobes in animal bites?
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Bacteroides sp.
Actinomyces sp. Fusobacterium sp. Eikenella corrodens Peptostreptococci |
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Bacteroides sp.
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Gram - bacilli/coccobacilli
anaerobe normal flora of upper resp./GI tract polysaccharide capsule LPS less toxic than other gram negatives Can survive in O2 with SOD B. fragilis most common |
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Actinomyces sp.
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Gram + bacilli
anaerobe filamentous slow grower common in oropharynx |
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Fusobacterium
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Gram - bacilli
anaerobe pleomorphic normal flora of upper resp/GI |
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Eikenella corrodens
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Gram - bacilli
facultative anaerobe bleach odor oxidase + catalase - urease - indole - HUMAN BITES Part of HACEK group in Cardiopulm Causes sepsis in immune compromised and IV drug users that lick needles |
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Peptostreptococci sp.
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Gram + cocci
anaerobic normal flora of mouth/GI/Genitourinary HUMAN BITES |
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Bartonella henselae
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Gram - rod
aerobic Difficult to gram stain; *USE Warthin-Starry silver stain* Reservoir=cats Disease: Cat Scratch Fever (regional lymphadenitis) |
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Streptobacillus moniliformis
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Gram - bacillus
aerobic pleomorphic, but often bead appearance of long, thin bacilli Vector: rat Incubation: < 10 days Disease: Rat Bite Fever (septic fever, petechial rash, polyarthritis, headache, myalgia) |
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Spirillum minor
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Gram - bacillus
spiral shaped motile and darting Cannot culture Incubation: 2 weeks Disease: Rat Bite Fever (recurrent fever, less prominent rash, lymphadenopathy, lymphagitis) |
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Rabies Virus
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Rhabdovirus
-ssRNA bullet-shaped Postmortem: Presence of Negri bodies and antigen detection in brain reservoir: raccoons, skinks, bats |
