A total of 4190 blood smears were collected between January and December 2007 from dogs exhibiting clinical signs of haemoprotozoan infections. On blood smear examination 485 blood smears were found to be positive for various haemoprotozoa and rickettsia. Among the positive cases , the majority of haemoprotozoans identified were Babesia gibsoni 84.9%, followed by Ehrlichia canis 6 %, Hepatazoan...

INTRODUCTION Toxocara canis is an ascarid parasite of the small intestine of dogs that causes visceral larva migrans in humans. METHODS With the aim of demonstrating the effectiveness of the fungus Pochonia chlamydosporia on Toxocara canis eggs under laboratory conditions, a trial was set up in Petri dishes with 2% agar-water. RESULTS There was ovicidal activity of 43.8% (p < 0.01) in the t...

We demonstrated that Demodex canis was transferred to skin xenografts of a dog and a hamster onto severe combined immunodeficiency mice. After the transfer of mites, the number of eggs, larvae, nymphs and adult mites per gram of canine and hamster xenografts increased, whereas no live mites were detected on murine allograft. These results indicate that D. canis proliferates in hair follicles of...

This review summarizes data from the numerous investigations from the beginning of the last century to the present. The studies concerned the main issues of the morphology, the life cycle, hosts and localization of Hepatozoon canis (phylum Apicomplexa, suborder Adeleorina, family Hepatozoidae). The characteristic features of hepatozoonosis, caused by Hepatozoon canis in the dog, are evaluated. ...

BACKGROUND Thrombocytopenia is common in dogs on St Kitts but there is no data on the possible etiological role played by infections with Anaplasma, Babesia and Ehrlichia, other than E. canis, which are known to occur in the Caribbean. METHODOLOGY Blood from 13 thrombocytopenic but apparently healthy dogs seronegative (Snap 3Dx) for E. canis were tested by PCR for Ehrlichia, Anaplasma and Bab...

Canine hepatozoonosis, caused by Hepatozoon canis, is transmitted by the ingestion of brown dog tick, Rhipicephalus sanguineus. In the present study R. sanguineus ticks (n=60) collected from dogs presented at Small Animal Clinics, Teaching Veterinary Clinical Complex, GADVASU, Ludhiana, Punjab, India were screened by PCR based assay for the detection of H. canis specific 18S ribosomal RNA gene ...

The efficacy of doxycycline treatment (10 mg/kg of body weight every 24 h for 42 days) in eliminating Ehrlichia canis from four subclinically infected dogs was evaluated. One dog remained PCR positive, suggesting that 6 weeks of doxycycline treatment may not be sufficient to clear E. canis parasites from all subclinically infected dogs. Serology (indirect immunofluorescent antibody assay) was s...

Brucella canis is considered a rare cause of human brucellosis. The clinical importance of this infection may have been underestimated so far because of difficulties with presumptive diagnosis. The case described here presented symptoms compatible with brucellosis but the routine tests using Brucella abortus antigen were negative. The infection would have remained undiagnosed if culture had not...

The genus Hepatozoon includes hundreds of species that infect birds, reptiles, amphibians and mammals, in all continents with tropical and subtropical climates. Two species have been described in domestic dogs: H. canis, reported in Europe, Asia, Africa, South America and the United States; and H. americanum, which so far has only been diagnosed in the United States. In Brazil, the only species...

BACKGROUND The purpose of this case report is to describe clinical and angiographic findings of retinal vasculitis in acute Toxocara canis neuroretinitis associated with systemic infection. FINDINGS A 16-year-old male presented with a 1 week history of left eye pain, floaters, and decreased visual acuity. Ocular examination was consistent with neuroretinitis and retinal vasculitis. Fluorescei...