Las ehrlichiosis y anaplasmosis canina son enfermedades transmitidas por garrapatas, provocadas bacterias del genero Ehrlichia Anaplasma. Debido a sus multiples manifestaciones clinicas, su diagnostico es un reto para el veterinario. La distribucion de estos hemoparasitos incluye areas donde principal vector, Rhipicephalus sanguineus esta presente. Este estudio fue disenado determinar la presen...

Ehrlichia canis is the primary etiologic agent of canine monocytic ehrlichiosis, a globally distributed and potentially fatal disease of dogs. We previously reported on the identification of two conserved major immunoreactive antigens, gp36 and gp19, which are the first proteins to elicit an E. canis-specific antibody response, and gp200 and p28, which elicit strong antibody responses later in ...

A total of 344 dogs belonging to people in resource-poor communities in North West Province, South Africa, was examined for ectoparasites, and all visible arthropods were collected from the left side of each dog. By doubling these numbers it was estimated that the dogs harboured 14,724 ixodid ticks, belonging to 6 species, 1,028 fleas, belonging to 2 species, and 26 lice. Haemaphysalis leachi a...

We previously culture isolated a strain of Ehrlichia canis, the causative agent of canine ehrlichiosis, from a human in Venezuela. In the present study, we examined whether dogs and ticks are infected with E. canis in Venezuela and, if so, whether this is the same strain as the human isolate. PCR analysis using E. canis-specific primers revealed that 17 of the 55 dog blood samples (31%) and all...

OBJECTIVES To assess the efficacy of rifampicin in achieving clinical and haematological recovery and clearing infection in dogs with experimentally induced acute monocytic ehrlichiosis. METHODS Five Ehrlichia canis-infected Beagle dogs were treated with rifampicin (10 mg/kg/24 h orally for 3 weeks), nine E. canis-infected dogs received no treatment (infected untreated dogs) and two dogs serv...

Abstract OBJECTIVE To compare the performance of 5 synthetic peptide–based ELISAs with that 3 commercially available immunofluorescent assays (IFAs) for serologic diagnosis anaplasmosis and ehrlichiosis in dogs. SAMPLE A convenience set 109 serum samples obtained before at various times after inoculation 23 dogs were experimentally infected Anaplasma phagocytophilum, platys, Ehrlichia canis, ch...

The detection and therapy of canine vector-borne diseases in imported dogs are of major importance in small animal practice. Over the last years, the import of dogs from the Mediterranean region and Southeast Europe has increased, countries often endemic for a variety of vector-borne diseases such as babesiosis, hepatozoonosis, leishmaniosis, dirofilariosis or ehrlichiosis. This retrospective s...

The aim of this communication is to provide preliminary information on the tick-borne pathogens of potential zoonotic importance present in southern Africa, mainly focusing on their geographical distribution and host range, and to identify research gaps. The following tick-borne zoonoses have been reported to occur in southern Africa based mainly on case reports: Crimean-Congo haemorrhagic feve...

Although tick-borne pathogens are of tremendous historical importance to both veterinary and human medicine, recent events emphasize an expanding role for newly discovered, as well as previously recognized tick-transmitted organisms, as a cause of animal and human suffering. One of the most important new developments related to anaplasmosis and ehrlichiosis is the realization that a given mamma...

The objective of the present study was to evaluate the therapeutic efficacy of a generic doxycycline tablet (DoxyVet) against Ehrlichia canis infection in dogs. Canine monocytic ehrlichiosis is caused by the bacterium E. canis and transmitted by the brown kennel tick (Rhipicephalus sanguineus). Six disease-free and tick-free dogs were infested with E. canis infected ticks. Once diagnosed (with ...