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Ehrlichiosis (/ ˌ ɛər l ɪ k i ˈ oʊ s ɪ s /; also known as canine rickettsiosis, canine hemorrhagic fever, canine typhus, tracker dog disease, and tropical canine pancytopenia) is a tick-borne disease of dogs usually caused by the rickettsial agent Ehrlichia canis. Ehrlichia canis is the pathogen of animals.
Ehrlichiosis in dogs will show obvious symptoms on the later part of infection. This is why some symptoms are already severe when diagnosed. There are three stages of ehrlichia infection - the acute (or the early stage), sub-clinical (symptoms are not yet evident), and clinical or chronic (symptoms are obvious and long-standing).
Symptoms in dogs include acute arthritis, anorexia and lethargy. There is no rash as is typically seen in humans. [11] Ehrlichiosis is a disease caused by Ehrlichia canis and spread by the brown dog tick, Rhipicephalus sanguineus. Signs include fever, vasculitis, and low blood counts. [6]
Ehrlichia canis is an obligate intracellular bacterium that acts as the causative agent of ehrlichiosis, a disease most commonly affecting canine species. This pathogen is present throughout the United States (but is most prominent in the South ), [ 3 ] South America, Asia, Africa and recently in the Kimberley region of Australia.
Ehrlichia is a genus of Rickettsiales bacteria that are transmitted to vertebrates by ticks. These bacteria cause the disease ehrlichiosis , which is considered zoonotic , because the main reservoirs for the disease are animals.
The symptoms include neurological signs such as tremors and head pressing, respiratory signs such as coughing and nasal discharge, and systemic signs such as fever and loss of appetite. Physical examination may reveal petechiae of the mucous membranes, tachycardia, and muffled heart sounds. Heartwater can also cause reproductive and ...
Ehrlichia chaffeensis. E. chaffeensis causes human monocytic ehrlichiosis and is known to infect monocytes. [1] It has also been known to infect other cell types such as lymphocytes, atypical lymphocytes, myelocytes, and neutrophils, but monocytes appear to best harbor the infection.
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