SCENARIO #4

You examine a dog with skin problems that look like this.

The dog has had them for a while and they seem to be getting worse. The owner has brought the dog in because the dog has lost a lot of weight and is not eating well. On physical exam you also palpate enlarged lymph nodes and what you think is an enlarged spleen. On biochemical profile the dog has increased BUN and creatinine, hyperproteinemia with hyperglobulinemia and hypoalbuminemia. You come up with the following list of differentials that cause the clinical signs in this dog. Which one of the following differentials is a zoonotic concern?

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