Examination of CSF

 

1.      A 40 year old bird handler was admitted to the hospital with soreness over his upper jaw, progressive vision loss, and bladder dysfunction.  He had been well 2 months earlier.  Within weeks he lost reflexes in his lower extremities and subsequently died.  Examination of CSF showed lymphocytes.  What etiology do you suspect? What further information do you need? (20 points)