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Corynebacterium diphtheriae
C. diphtheriae appear as small, waxy, off-white colonies on blood agar. Colonies are often described as...
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Uploaded on Apr 8, 2010
CAMP Test
Christi Atkins Munch-Petersen test. For the identification of GBS, which will create an enhanced, arrow...
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Uploaded on May 27, 2009
Optochin sensitive
Susceptibility to the antibiotic, Optochin, is used to identify Streptococcus pneumoniae from...
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Uploaded on May 27, 2009
Optochin resistant
All other alpha-hemolytic Streptococci (Viridans Strep) are resistant to Optochin. Notice colonies...
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Uploaded on May 27, 2009
Bacitracin sensitive
Bacitracin resistant
Cryptococcus neoformans
C. neoformans appear as small/medium (depending on length of incubation) sized, mucoid colonies on blood...
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Uploaded on May 27, 2009
Candida albicans
Candida albicans appear as small, round, white colonies on blood agar, possibly with pseudohyphae...
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Uploaded on May 27, 2009
Bordetella bronchiseptica
Bordetella appear as small, grayish-white colonies on blood agar.
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Uploaded on May 27, 2009
Yersinia enterocolitica
Y. enterocolitica appear as smooth, round, grayish-white colonies on blood agar.
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Uploaded on May 27, 2009
Serratia marcesens
S. marcesens appear as smooth, round, medium sized colonies on blood agar. Some strains produce a pinkish-orange pigment.
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Uploaded on May 27, 2009
Salmonella spp.
Salmonella appear as medium sized, smooth, round, milky white colonies on blood agar.
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Uploaded on May 27, 2009
E. coli
E. coli appear as medium sized, smooth, round, grayish-white colonies on blood agar.
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Uploaded on May 27, 2009
Streptococcus pneumoniae
S. pneumoniae appear as mucoid colonies with alpha hemolysis-like zones on blood agar.
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Uploaded on May 27, 2009
Streptococcus agalactiae
S. agalactiae appear as tiny colonies with small zones of beta-hemolysis on blood agar.
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Uploaded on May 27, 2009
Streptococcus pyogenes
S. pyogenes appear as tiny colonies with large zones of beta-hemolysis on blood agar.
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Uploaded on May 27, 2009
Staphylococcus epidermidis
S. epidermidis appear as small, white colonies colonies on blood agar with no effect on RBC.
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Uploaded on May 27, 2009
Staphylococcus aureus
S. aureus appear as medium sized, yellowish-white, hemolytic colonies on blood agar.
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Uploaded on May 27, 2009
