(see also "Any Species Diseases")

African Horse Sickness: (N) Orbivirus. FOREIGN ANIMAL DISEASE. (A110)

Contagious Equine Metritis: (N) Taylorella equigenitalis.

Definitive diagnosis requires isolation and identification of causative agent and the concurrence of the State Chief Animal Health Official and the Federal Area Veterinarian-in-Charge. (B201)

Dourine: (N) Trypanosoma equiperdum. FOREIGN ANIMAL DISEASE. Quarantine. (B202)

Epizootic Lymphangitis: (N) Histoplasma farciminosum. FOREIGN ANIMAL DISEASE. (B203)

Equine Encephalomyelitis: (N) Togavirus. Eastern EE, Western EE. Presumptive diagnosis may be made based on compatible clinical signs and serology (HI titers of 1:40 or greater, SN titers of 1:10 or greater). Definitive diagnosis requires virus isolation and identification. Suspect animals quarantined. MDCH notified with USDA, APHIS, VS involvement. (B204)

Equine Infectious Anemia: (N) Lentivirus, Swamp Fever, EIA. Presumptive diagnosis may be based on serology using a USDA-approved test (SA-ELISA, c-ELISA, or AGID). Definitive diagnosis requires confirmation testing with a USDA-approved AGID test, an epidemiologic investigation by a State or Federal Veterinarian. Quarantine positive and suspect animals, discuss isolation/segregation and procedures for quarantine/removal, test exposed and suspected animals. (B205)

Equine Influenza: (N) Virus Type A. Presumptive diagnosis is based on compatible clinical signs and serologic testing (AGID, ELISA). Definitive diagnosis is based on compatible histologic lesions and demonstration of the agent via VI, FA, IHC. (B206)

Equine Piroplasmosis: (N) Babesia caballi, B. equi. FOREIGN ANIMAL DISEASE. (B207)

Equine Rhinopneumonitis: (N) Equine Herpesvirus 1 and 4. Presumptive diagnosis based on histologic lesions (inclusion bodies) and/or a positive FA. Definitive diagnosis requires either virus isolation and identification, or a fourfold increase in titer in paired serum samples on the SN test. (B208)

Equine Viral Arteritis: (N) Arterivirus, Equine Typhoid, Epizootic Cellulitis, Pinkeye. Definitive diagnosis requires isolation and identification of the virus. Equids that are epidemiologically linked to a positive animal may be considered positive if they exhibit a SN titer of 1:4 or greater. (B211)

Horse Mange: (N) Definitive diagnosis requires identification of the Sarcoptes mite from specimens. (B213)

Horse Pox: (N) FOREIGN ANIMAL DISEASE. (B210)

Japanese Encephalitis: (N) Japanese Encephalitis Virus (Flavivirus). FOREIGN ANIMAL DISEASE. (B212)

Surra: (N) Trypanosoma evansi. FOREIGN ANIMAL DISEASE. (B214)

Venezuelan Equine Encephalomyelitis: (N) Togavirus. FOREIGN ANIMAL DISEASE. (B215)