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
Eperythrozoonosis is an "acute febrile, icteroanemic disease of shoats" caused by the rickettsial organism Eperythrozoon spp. There are two species which are commonly associated with swine, E. suis, which produces a febrile disease, and E. parvum, which is innoxious.
Claxton, Marge and Kunesh, J. P.
"Eperythrozoonosis In Swine,"
Iowa State University Veterinarian: Vol. 37
, Article 4.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol37/iss3/4