Eperythrozoon suis is considered to be the major cause of icteroanemia in swine. Knowledge concerning the mode of transmission of eperythrozoonosis is incomplete. Because most cases of eperythrozoonosis occur during the warm months of the year, it has been assumed that dissemination of the blood parasite could be most easily accomplished by bloodsucking arthropod vectors.
Preston, K. S. and Greve, J. H.
"Eperythrozoonosis in 4-week-old Pigs,"
Iowa State University Veterinarian: Vol. 27
, Article 6.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol27/iss3/6