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I have a slow growing gram negative rod I cannot identify. The gram stain showed long gnr with tapered ends so I began to take the Capnocytophaga route. All roads lead away from that organism. The isolate is catalase, oxidase, and indole negative. It doesn not grow on Mac. It doesnt exactly swarm the agar, rather it reminds me of what an Eikenella looks like, but on a longer scale. I have tried a few ID systems and it does not come close to any ID.
Help?
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Though not the usual species of Capnocytophaga encountered in clinical specimens, there are a few that are oxidase and catalase negative: C. ochracea, C. gingivalis, C. sputigena, C. granulosa, C. haemolytica.
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