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
References
Dec 11, 1992·Journal of Clinical Microbiology·D P KnowlesL E Perryman
Sep 11, 1991·Journal of Clinical Microbiology·D P KnowlesS G Hennager
Mar 1, 1995·Veterinary Parasitology·D Stiller, M E Coan
Feb 1, 1994·Parasitology·M T AllsoppB A Allsopp
Jun 12, 1999·Journal of Clinical Microbiology·L S KappmeyerD P Knowles
Aug 6, 1999·Veterinary Parasitology·J B BashiruddinE Rebêlo
Apr 13, 2000·Veterinary Parasitology·M ZahlerR Gothe
Aug 10, 2000·Baillière's Best Practice & Research. Clinical Endocrinology & Metabolism·B T Ekblom
Oct 6, 2001·Veterinary Parasitology·T B NicolaiewskyL S Ozaki
Dec 10, 2003·Journal of Clinical Microbiology·Massaro W UetiDonald P Knowles
Apr 16, 2004·The Veterinary Record·L P Phipps, A Otter
Aug 6, 2005·Journal of Clinical Microbiology·Massaro W UetiDonald P Knowles
Mar 4, 2006·Veterinary Parasitology·Gerrit Uilenberg
Dec 14, 2006·Clinical Chemistry and Laboratory Medicine : CCLM·Giuseppe Lippi, Giuseppe Banfi
Dec 9, 2008·Journal of Medical Entomology·O Nicolas SchwintGlen A Scoles
May 27, 2009·The Lancet Infectious Diseases·Rebecca L GortonMark Zuckerman
Citations
Nov 12, 2013·Ticks and Tick-borne Diseases·Thállitha S W J VieiraOdilon Vidotto
Nov 10, 2012·BMC Genomics·Lowell S KappmeyerKelly A Brayton
Feb 7, 2014·Parasites & Vectors·Glen A Scoles, Massaro W Ueti
Feb 13, 2013·Parasites & Vectors·Carina M HallDavid M Wagner
Sep 13, 2012·PloS One·Massaro W UetiDonald P Knowles
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
Mar 2, 2013·Equine Veterinary Journal. Supplement·J KutschaA J Guthrie
May 8, 2014·Equine Veterinary Journal·J S Weese
Dec 2, 2011·Veterinary Parasitology·L Nicki WiseDonald P Knowles
Dec 4, 2012·The Veterinary Journal·Juanita F GrauseThomas O Bunn
Dec 3, 2014·Veterinary Parasitology·Abdullah D AlanaziJan Slapeta
Jan 8, 2015·Annual Review of Entomology·Glen A Scoles, Massaro W Ueti
Jun 3, 2016·Parasites & Vectors·Gábor FöldváriHein Sprong
Oct 29, 2015·Equine Veterinary Journal·M DominguezPeter Timoney
Nov 5, 2016·Parasitology International·Miguel Angel Ayala-ValdovinosTheodor Duifhuis-Rivera
Sep 21, 2013·Clinical and Vaccine Immunology : CVI·Peter O AwindaMassaro W Ueti
Nov 11, 2018·The Veterinary Record·Robert M CoultousDavid G M Sutton
Jul 2, 2020·Parasitology·ThankGod E OnyicheOriel Thekisoe
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
Nov 12, 2020·Pathogens·Sharon Tirosh-LevyAmir Steinman
Jun 10, 2018·International Journal for Parasitology·Donald P KnowlesJoana C Silva
Jan 10, 2017·Experimental Parasitology·Wesley C Van VoorhisKayode K Ojo
Jul 16, 2019·Veterinary Parasitology·Kelly P SearsDonald P Knowles
Feb 11, 2018·Veterinary Parasitology·Fernanda GimenezRobert H Mealey
May 1, 2021·Pathogens·Idoko S IdokoMassaro W Ueti