Arthropod transmission Equine Infectious Anemia Swamp Fever Caused by a retrovirus Slow progressive wasting disease, often fatal. Not a new disease in the United States Showing signs of a resurgence Originally confined to Standardbred horses. Seen also in imported Warmbloods. Originally thought to be a respiratory disease. Now known to be spread venereally.
Infected stallions shed virus in semen for years.
Trypanosomiasis Surra Dourine Equine Protozoal Myeloencephalitis Equine Babesiosis Tick borne disease Caused by either Babesia caballi or Babesia equi. Transmitted by Dermacentor, Hyalomma or Rhipicephalus species of tick. B equi is the more pathogenic of the two. Young animals are the least susceptible to the disease. Immunity last only a year or two.