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29 Cards in this Set
- Front
- Back
Pasteurella sp. General Info
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P. multicida and P. canis
G- coccobacilli non-motile |
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Pasteurella virulence
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Toxin-producing
Normal flora of dogs, cats and other animals |
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Pasteurella sp. SX
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cellulitis and lymphadenitis
Complications-- abscesses, tenosynovitis, osteomyelitis and septic arthritis |
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Capnocytophagia canimorsus General Info
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G- fusiform bacilli
capnophilic |
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Capnocytophagia virulence/SX
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modifies PMN chemotactic activity
can cause septicemia |
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Bacteroides General Info
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G- slender bacilli or coccobacilli
colonize upper resp. and GI tracts (like fusobacteria) ANAEROBIC |
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Bacteroides virulence and SX
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chronic sinus and ear infxn
abscess skin and soft tissue infxn gyn infxns |
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Bacteroides fragilis
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most common bacteriodes sp.
polysaccharid capsule makes SOD--can survive in O2 |
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Actinomyces
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G+ bacilli
ANAEROBIC slow growing colonize oropharynx |
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Fusobacteria
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G- bacilli, pleomorphic
normal flora of upper resp. and GI (like bacteroides) osteomyelitis |
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Eikenella corrodens general info
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G- pleomorphic bacillus or coccobacillus
facultative anaerobe slow growing--grows best in CO2 part of HACEK group |
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Eikenella labs
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oxidase +
catalase - urease - indole - bleach-like odor "pitted" agar |
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Eikenella virulence/SX
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commensal in oropharynx and upper resp. tract
sepsis and soft tissue infxns of head and neck immunocompromised and IV drug users resistant to many ABX |
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Peptostreptococci sp.
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P. magnus
P. asaccharolyticus P. anaerobius P. micros P. sacchrolyticus P. intermedius |
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Peptostreptococci general info
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G+ cocci
anaerobic fastidious, slow growth normal flora of mouth, GI, GU and skin |
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Peptostreptococci virulence/SX
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sinusitis, cysts, osteomyelitis, abscesses, wounds, OB/GYN infxns, sepsis, human bites
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Bartonella henselae general info
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G- rod, pleomorphic
aerobic small |
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Bartonella henselae virulence and SX
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Cat scratch dz--regional lymphadenitis after papule at scratch site
can lead to angiomatosis and endocarditis usually benign and self-limiting |
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Bartonella henselae DX
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negative H&P for other causes of lymphadenitis
histo lymph node bx: bacteria on silver impregnated stain |
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Rite Bite Fever usually sx
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septic fever, petechial rash, polyarthritis, HA, N/V, anemia, pneumonia
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Rat Bite Fever Complications
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bacterial endocarditis
myocarditis pericarditis brain abscesses |
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Rat Bite Fever Dx
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culture blood, joint fluid or pus
find 1 of the 2 causative agents-- Streptobacillus moniliformis or Spirillum minus |
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S. moniliformis General info
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G- bacillus
aerobic pleomorphic fastidious--15% blood, 20% serum and 5% ascitic fluid |
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S. moniliformis virulence/SX
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Causes Rat Bite Fever--dx w/ blood culture
normal flora of oropharynx of rodents local inflammation and lymphadenitis can disseminate |
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S. minus General info
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G- bacillus
very small spiral shaped darting motility |
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S. minus virulence/sx
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Causes Rat Bite Fever--dx w/ dark field microscopy
characterized by RECURRENT FEVER less prominent rash |
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Rhabdovirus general info
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-ssRNA
bullet shaped zoonotic infxn--bats, dogs, raccoons causative agent in rabies |
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Sx of Furious Rabies
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aggression
agitation confusion excessive salivation hydrophobia |
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Sx of Dumb Rabies
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weakness
inability to swallow excessive salivation choking behavior |