Which of the following has these clinical characteristics:…

Which of the following has these clinical characteristics: Painless, ulcerated lesion at site of inoculation. Maculopapular rash all over body, including palms of hands and soles of feet. Late stages cause neurological problems such as ataxia, stroke, and dementia.

A patient presents with fever, neurological alterations and…

A patient presents with fever, neurological alterations and petechiae of the lower extremities. Lab results include a decreased platelet count, elevated bilirubin, and hemolysis and schistocytes in the blood smear. The clinician should include which of the following as a priority differential diagnosis?