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ODR
Microbio Anaerobic Wound Infections
19
Microbiology
Graduate
12/12/2010

Additional Microbiology Flashcards

 


 

Cards

Term
What are the non-sporeforming anaerobes? sporeforming?
Definition
non-sporeforming: bacterioides- gram (-), actinomyces
sporeforming: clostridium
Term
Where is bacterioides found?
Definition
normal flora of vagina and colon
Term
What is the clinical picture of bacterioides infection?
Definition
intraabdominal infections: peritonitis, local abscesses
metastatic abscesses from hematogenous spread
lung abscess from aspiration
Term
What is the virulence of bacterioides?
Definition
antiphagocytic capsule that is abscess promoting
enzymes: lipases, proteases, neuraminidase>promote abscess formation
catalase and SOD
endotoxin w/unusually low endotoxicity
Term
What class of protein synthesis inhibitors is bacterioides resistant to?
Definition
aminoglycosides
Term
What is the Tx of choice for all non-sporeforming anaerobes (excluding bacteroides)?
Definition
penicillin
Term
What is the morphology of actinomyces?
Definition
gram (+) rod, opportunist, filmaentous (resembles fungi), facultative IC, facultative or obligate anaerobe
Term
Where are actinomyces found?
Definition
soil
normal flora of mouth & GI
Term
Which anaerobic organism is associated w/granulomas and pyogenic lesions?
Definition
actinomyces
Term
lumpy jaw
Definition
actinomyces
Term
Which anaerobic organism has an affinity for the brain?
Definition
actinomyces
Term
What organism causes chronic suppurative destruction of CT?
Definition
actinomyces
Term
What organism presents as yellow sulfur granules in the sputum?
Definition
actinomyces
Term
What organism uses thioglycolate broth or brain heart infusion blood agar?
Definition
actinomyces
Term
Where is clostridium perfringens found?
Definition
soil, water, sewage, normal flora of GI tract and female genital tract
Term
What anaerobic organism presents w/pain, edema, cellulitis, and crepitation?
Definition
c. perfringens
Term
What does c. perfringens cause?
Definition
pain, edema, cellulitis
crepitation
severe necrotizing disease of intestines
Term
What anaerobic organism has alpha toxin (a lecithinase) and other degrading enzymes that promote invasiveness?
Definition
c. perfringens
Term
gram (+)
Definition
c tetani
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