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
On February 11, 1942, a veterinarian was called to treat an eight month old purebred Hereford steer. The caretaker gave a history of a slowly developing enlargement posterior to the mandible. The condition was diagnosed as parotitis and the animal was treated with an organic iodide per orum.
Fisher, R. P.
"Actinomycosis-Like Lesions Caused By Corynebacterium,"
Iowa State University Veterinarian: Vol. 5
, Article 11.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol5/iss1/11