title: Anti-Hepatozoon canis serum antibodies and gamonts in naturally-occurring canine monocytic ehrlichiosis.
abstract: The prevalence of IgG antibodies to Hepatozoon canis and the presence of gamonts in the blood and hemolymphatic tissues were studied in dogs with canine monocytic ehrlichiosis (CME) caused by Ehrlichia canis. Both pathogens are transmitted by the tick Rhipicephalus sanguineus. Forty-five out of 69 (65.2%) dogs with CME were seropositive to H. canis by an enzyme-linked immunosorbent assay (ELISA). Intra-neutrophilic gamonts of H. canis were found in 2 out of 69 dogs (2.9%) comprising 4.5% of the seropositive dogs. The present study indicated that the prevalence of antibodies to H. canis was high among dogs with CME in an area where both infections are endemic. However, previous exposure to H. canis was not found as an important contributor to clinical or clinicopathologic abnormalities found in dogs with CME.
authors.affiliation: Clinic of Companion Animal Medicine, School of Veterinary Medicine, Aristotle University of Thessaloniki, P.O. Box 16039, GR-54627, Thessaloniki 54401, Greece.
authors.forename: Mathios E
authors.initials: ME
authors.lastname: Mylonakis
authors.forename: Leonidas
authors.initials: L
authors.lastname: Leontides
authors.forename: Liat
authors.initials: L
authors.lastname: Gonen
authors.forename: Charalambos
authors.initials: C
authors.lastname: Billinis
authors.forename: Alexander F
authors.initials: AF
authors.lastname: Koutinas
authors.forename: Gad
authors.initials: G
authors.lastname: Baneth
mesh_terms: D000818:Animals; D000907:Antibodies, Bacterial / Q000097:blood*; D000913:Antibodies, Protozoan / Q000097:blood; D003044:Coccidia / Q000276:immunology*; D003048:Coccidiosis / Q000150:complications / Q000276:immunology / Q000469:parasitology / Q000662:veterinary*; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004283:Dog Diseases / Q000453:epidemiology / Q000276:immunology / Q000382:microbiology* / Q000469:parasitology*; D004285:Dogs; D041061:Ehrlichia canis / Q000235:genetics / Q000254:growth & development*; D016873:Ehrlichiosis / Q000150:complications / Q000382:microbiology / Q000662:veterinary*; D004797:Enzyme-Linked Immunosorbent Assay / Q000662:veterinary; D005260:Female; D019084:Fluorescent Antibody Technique, Indirect / Q000662:veterinary; D006115:Greece / Q000453:epidemiology; D007074:Immunoglobulin G / Q000097:blood; D008297:Male; D016133:Polymerase Chain Reaction / Q000662:veterinary; D016036:Seroepidemiologic Studies
chemical_list: D000907:Antibodies, Bacterial; D000913:Antibodies, Protozoan; D004269:DNA, Bacterial; D007074:Immunoglobulin G