Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
Two dogs were entered at Stange Memorial Clinic in April of 1945. One, a five-year-old male Collie, showed symptoms of depression, erythema of the underline, congestion and mild icterus of the mucous membranes, diarrhea, loss of and perverted appetite, and cloudiness of the cornea of the left eye.
Thompson, Sam W.
"Penicillin Therapy in Leptospirosis,"
Iowa State University Veterinarian: Vol. 8
, Article 15.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol8/iss1/15