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
Listeria monocytogenes is a pathogen which is found throughout the world. It is capable of producing infections in a wide variety of species and has been isolated from numerous mammals as well as birds and fish.
Glock, Robert D. and Miller, Keith
"Septicemic Listeriosis in a Calf,"
Iowa State University Veterinarian: Vol. 34
, Article 9.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol34/iss1/9