canine ehrlichiosis is a zoonotic rickettsial disease transmitted by ticks. in the present study, 198 companion dogs of different ages were examined for serum antibody detection against ehrlichia canis by means of immunochromatography assay. the dogs were selected among referred cases to veterinary hospital of shahid chamran university of ahvaz, southwestern iran from november 2008 to march 201...

This study aimed to analyze the hematological parameters, blood viscosity, and cytokines of dogs infected by Ehrlichia canis untreated treated with doxycycline. Initially, 47 were examined, 36 suspected have canine monocytic ehrlichiosis, which was confirmed through molecular polymerase chain reaction tests. consisted 25 dogs, 11 being healthy 14 testing positive for E. canis. The divided into ...

This study investigated the epidemiology of canine ehrlichiosis in Northeastern Brazil, focusing the identification of the Ehrlichia species and vectors involved. Samples were collected from 472 domestic dogs residing in the health districts of Cajazeiras and Itapuã of Salvador city. The average prevalence of antibodies reactive to E. canis by immunofluorescent antibody test (IFAT) (titer ≥ 1:8...

Canine monocytic ehrlichiosis (CME) is caused by Ehrlichia canis, an obligate intracellular bacterium with tropism for monocytes and macrophages. It is transmitted by the ticks Rhipicephalus sanguineus and Dermacentor variabilis. CME has been reported throughout the world, with a higher frequency in tropical and subtropical regions. The disease may be manifested by fever, depression, dyspnoea, ...

Dogs were experimentally inoculated with Ehrlichia canis Florida to assess the efficacy of doxycycline hyclate for the treatment of acute ehrlichiosis. Treatment with doxycycline eliminated infection in eight of eight dogs. Untreated infected control dogs appeared to eliminate the infection or, alternatively, suppress the degree of ehrlichiemia to a level not detectable by tissue culture isolat...

A nested polymerase chain reaction assay was used to determine the presence of Ehrlichia chaffeensis, E. canis, and E. ewingii DNA in blood samples of free-ranging coyotes from central and northcentral Oklahoma. Of the 21 coyotes examined, 15 (71%) were positive for E. chaffeensis DNA; none was positive for E. canis or E. ewingii. Results suggest that E. chaffeensis infections are common in fre...

The aim of this study was to compare the detection of Ehrlichia canis morulae and DNA by nPCR in whole blood and spleen aspiration. The sample included 40 dogs showing thrombocytopenia associated to clinical signs suggestive of canine ehrlichiosis. Morulae detection showed that in 35 of the dogs studied, 17 had morulae in spleen tissue, and two in buffy coat smears. E. canis DNA was detected in...

Canine ehrlichiosis is a zoonotic rickettsial disease transmitted by ticks. In the present study, 198 companion dogs of different ages were examined for serum antibody detection against Ehrlichia canis by means of immunochromatography assay. The dogs were selected among referred cases to Veterinary Hospital of Shahid Chamran University of Ahvaz, Southwestern Iran from November 2008 to March 201...

Blood from a domestic dog infected with Ehrlichia canis was injected into 3 adult vervet monkeys Cercopithecus pygerythrus. The monkeys did not develop any clinical or haematological signs of disease, nor did they seem to be able to harbour the parasite. Furthermore, neither morulae of E. canis nor haematological evidence of ehrlichiosis were seen after these monkeys had been splenectomized. Th...

We conducted a retrospective serosurvey of 1,000 persons in Israel who had fever of undetermined cause to look for Ehrlichia chaffeensis antibodies. Four of five cases with antibodies reactive to E. chaffeensis were diagnosed in the summer, when ticks are more active. All patients had influenzalike symptoms with high fever. None of the cases was fatal. Three serum samples were also seroreactive...