Two tributyrin hydrolysis-negative Moraxella isolates obtained in cases of keratoconjunctivitis in Camelus dromedarius in the Canary Islands showed highest degrees of 16S rRNA gene sequence similarity to Moraxella canis. A level of DNA relatedness to the M. canis type strain of 79% confirmed the identity of the isolates as a tributyrin hydrolysis-negative biovar of M. canis.

Recognition of Hepatozoon canis and Hepatozoon americanum as distinct species was supported by the results of Western immunoblotting of canine anti-H. canis and anti-H. americanum sera against H. canis gamonts. Sequence analysis of 368 bases near the 3' end of the 18S rRNA gene from each species revealed a pairwise difference of 13.59%.

Aim: This research work is aimed to find out the prevalence of haemoparasitic infections in different categories of dogs. Materials and Methods: Out of 2104 dogs registered in the Teaching Veterinary Clinical Complex of the College of Veterinary Science, Khanapara, Guwahati during January 2009 to December 2010, blood of 424 cases suspected for haemoparasites on the basis of clinical history wer...

Brucella spp. is a worldwide zoonotic pathogen. Infection by Brucella canis in dogs is endemic in the Southern USA and in Central and South America, but it appears sporadically in other parts of the world, including Europe. Tissue samples from a dog with chronic prostatitis, discospondylitis and locomotor problems were subjected to clinical and laboratory examinations. B. canis was detected by ...

Canine ehrlichiosis is a very important emerging disease in India. This study is the first attempt screening a large number of canines in India for the detection of canine monocytic ehrlichiosis. In the present study, 510 blood samples of dogs were screened for the presence of Ehrlichia canis and other variants of Anaplasmataceae family by serological and molecular methods.Out of the 510 serum ...

Toxocara canis (Nematoda: Ascaridae) is an intestinal nematode parasite of dogs, which can also cause disease in humans. Transmission to humans usually occurs because of direct contact with T. canis eggs present in soil contaminated with the feces of infected dogs. This nematode has extraordinary abilities to survive for many years in different tissues of vertebrates, and deve...

Background and Aims: Toxocariasis is a zoonotic parasitic disease with worldwide distribution caused by the larval stage of ascaridoid nematodes of dogs (Toxocara canis) and cats (Toxocara cati). The study was accomplished to determine the sequence variation in ITS2 and COX1 genes within isolates of Toxocara canis. Materials and Methods: Two hundred Stool samples were collected randomly from d...

Hepatozoonosis is a protozoal disease caused by various species of Hepatozoon. This parasite is transmitted from tick; the main vector of Hepatozoon canis is usually the brown dog tick (Rhipicephalus sanguineus). However, several species of ticks are disposed as the alternative vectors. Dogs are usually infected by eating the tick or a part of the tick organ infected by the mature oocysts conta...

Molecular analysis of dermatophytes (based on PCR fingerprinting) revealed high clonal di"erentiation between the genus and species. Microsporum canis (zoophilic dermatophyte, belonging to genus Microsporum), responsible for most cases of tinea capitis in children, tinea corporis in adults and dermatophytoses in cats, is very unique in comparison with other dermatophytes. Results of most molecu...

Canine monocytic ehrlichiosis (CME) is a common tick-borne disease caused by the rickettsial bacterium Ehrlichia canis (Rickettsiales: Anaplasmataceae). In view of the different stages and variable clinical signs of CME, which can overlap with those of other infections, a conclusive diagnosis can more readily be obtained by combining clinical and hematological evaluations with molecular diagnos...