Staphylococci, Atlas of Staphylococci, SUBCLINICAL ATLAS, MICROBIOLOGY ATLAS, atlas in medical, atlas in Microbiology, tuyenlab.net
|Fig 1. Micrococcus growing on sheep blood agar|
showing yellow pigment.
|Fig 2. Numerous gram-positive cocci in clusters, with|
many polymorphonuclear cells from an aspirated abscess in
|Fig 3. A, Microscopic morphology of Staphylococcus|
sp. on Gram stain. Gram-negative–looking cells show how
older cells easily decolorize. B, Scanning electron micrograph
showing the typical “clusters” of staphylococci.
|Fig 4. Staphylococcus aureus growing on sheep|
blood agar showing β-hemolytic, creamy, buttery-looking
|Fig 5. Coagulase-negative staphylococci growing on|
sheep blood agar, revealing nonhemolytic, white, creamy
|Fig 6. Tube coagulase test detects extracellular|
enzyme “free coagulase.” Top tube is coagulase positive.
|Fig 7. Novobiocin susceptibility test to differentiate|
coagulase-negative staphylococci isolated from urine
samples. Staphylococcus saprophyticus (top) is resistant to
novobiocin, indicated by the lack of a zone of inhibition
around the disk.
|Fig 9. Slide coagulase test (BactiStaph), a latex|
agglutination method commercially available for the
detection of both clumping factor and protein A.
|Fig 10. D test positive isolate, showing flattening of|
the clindamycin (CC) zone adjacent to the erythromycin (E)
disk and the characteristic D-like pattern.
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