Proteus

Do you have access to a KIA or TSI slant? Streak the stop and stab the slant to the bottom. If you have Proteus, you will have strong H2S production (black color) towards the bottom of the slant. One easy method, although I wouldn't condone it for identification : ) is that ...

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i believe the oxidase test is truly negative and not positive so i'm leaning towards proteus vulgaris. let me know if anyone thinks different. Thanks.

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could it be proteus vulgaris?

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... and +ve but i can't narrow them down! Oxidase -ve: Samonella, Shigella E.coli, Klebsiella Enterobacter, Enterobacteriaceae, Narsinice, Serratia, Proteus, Citrobacter Oxidase +ve: Helicobacter, Campylobacter, Vibrio, Pseudomonase aeruginosa, Haemophilus, Bordetella parapertussis How do you identify ...

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... Pseudomonas fluorescens - negative Reference http://aem.asm.org/cgi/reprint/18/3/355.pdf (check Table 1) Proteus mirabilis - may be positive Citrobacter freundii - may be negative Reference http://jcm.asm.org/cgi/reprint/4/5/453.pdf

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