title: Prevalence of antibodies to Encephalitozoon cuniculi in horses from Brazil.
abstract: Encephalitozoon cuniculi has been associated with natural cases of abortion and stillbirth in horses. However, little is known about the prevalence of this parasite in horses. We examined sera from 559 horses from Brazil for antibodies to E. cuniculi using the indirect immunofluorescent antibody (IFA) test and the direct agglutination test (DAT). We found that 79 (14.1%) were positive in the IFA test and 70 (12.5%) were positive in the DAT. Compared to the IFA as the "gold standard" the sensitivity of the DAG was 94.0% and the specificity was 96.1%. Our study indicates that horses in Brazil are frequently exposed to E. cuniculi.
authors.affiliation: Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, 1410 Prices Fork Road, Blacksburg, VA 24061-0342, USA.
authors.forename: David
authors.initials: D
authors.lastname: Goodwin
authors.forename: Solange M
authors.initials: SM
authors.lastname: Gennari
authors.forename: Daniel K
authors.initials: DK
authors.lastname: Howe
authors.forename: J P
authors.initials: JP
authors.lastname: Dubey
authors.forename: Anne M
authors.initials: AM
authors.lastname: Zajac
authors.forename: David S
authors.initials: DS
authors.lastname: Lindsay
mesh_terms: D000372:Agglutination Tests / Q000662:veterinary; D000818:Animals; D000908:Antibodies, Fungal / Q000097:blood*; D001938:Brazil; D009670:Encephalitozoon cuniculi / Q000276:immunology* / Q000302:isolation & purification; D016890:Encephalitozoonosis / Q000453:epidemiology / Q000276:immunology / Q000662:veterinary*; D019084:Fluorescent Antibody Technique, Indirect / Q000662:veterinary; D006734:Horse Diseases / Q000453:epidemiology* / Q000276:immunology / Q000382:microbiology*; D006736:Horses; D016036:Seroepidemiologic Studies
chemical_list: D000908:Antibodies, Fungal