Outbreak of equine piroplasmosis in Florida

Journal of the American Veterinary Medical Association
Michael A ShortJosie L Traub-Dargatz

Abstract

A 7-year-old Quarter Horse gelding was hospitalized in Ocala, Fla, because of lethargy, fever, anorexia, and swelling of distal aspects of the limbs. A tentative diagnosis of equine piroplasmosis (EP) was made on the basis of examination of a blood smear. The case was reported to the Florida State Veterinarian, and infection with Babesia equi was confirmed. The subsequent investigation included quarantine and testing of potentially exposed horses for B equi and Babesia caballi infections, tick surveillance, and owner-agent interviews. 210 horses on 25 premises were tested for infection with EP pathogens. Twenty B equi-infected horses on 7 premises were identified; no horses tested positive for B caballi. Seven horses, including the index case, had clinical findings consistent with EP Dermacentor variabilis was considered the only potential tick vector for B equi collected, and all D variabilis specimens tested negative for Babesia organisms via PCR assay. Results of the epidemiological investigation suggested that B equi was spread by use of shared needles and possibly blood transfusions. All horses that tested positive were involved in nonsanctioned Quarter Horse racing, and management practices were thought to pose substantia...Continue Reading

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Citations

Nov 10, 2012·BMC Genomics·Lowell S KappmeyerKelly A Brayton
Feb 7, 2014·Parasites & Vectors·Glen A Scoles, Massaro W Ueti
Mar 23, 2013·Journal of the American Veterinary Medical Association·Laurie A BeardJosie L Traub-Dargatz
Oct 11, 2014·The Veterinary Clinics of North America. Equine Practice·L Nicki WiseDonald P Knowles
Sep 17, 2013·Journal of Veterinary Internal Medicine·L N WiseD P Knowles
May 8, 2014·Equine Veterinary Journal·J S Weese
Dec 2, 2011·Veterinary Parasitology·L Nicki WiseDonald P Knowles
Jan 8, 2015·Annual Review of Entomology·Glen A Scoles, Massaro W Ueti
Jun 3, 2016·Parasites & Vectors·Gábor FöldváriHein Sprong
Nov 5, 2016·Parasitology International·Miguel Angel Ayala-ValdovinosTheodor Duifhuis-Rivera
Nov 11, 2018·The Veterinary Record·Robert M CoultousDavid G M Sutton
May 17, 2018·Parasitology Research·Mariana IonitaIoan Liviu Mitrea
Jul 24, 2018·Parasitology Research·Adrian Alberto Díaz-SánchezBelkis Corona-González
May 19, 2019·International Journal of Environmental Research and Public Health·ThankGod E OnyicheOriel Thekisoe
Jul 11, 2020·Parasitology Research·Philip W MsheliaMassaro W Ueti
Sep 6, 2020·The Veterinary Record·Robert M CoultousWilliam Weir
Jan 10, 2017·Experimental Parasitology·Wesley C Van VoorhisKayode K Ojo
Feb 11, 2018·Veterinary Parasitology·Fernanda GimenezRobert H Mealey
May 1, 2021·Pathogens·Idoko S IdokoMassaro W Ueti

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