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4 lut 2015 · Introduction. Canine ehrlichiosis and anaplasmosis are important tick-borne diseases with a worldwide distribution. Ehrlichia canis was first identified in 1935 in Algeria; dogs infested with ticks showed fever and anemia [1].
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Ehrlichiosis is a tick-borne infectious disease of dogs. It first gained attention as a significant disease when military dogs returning from Vietnam during the 1970's were found to be infected. The disease seems to be particularly severe in German shepherds and Doberman pinchers.
15 sie 2005 · It infects the white blood cells known as granulocytes and is not generally as serious as Ehrlichia canis. Dogs are usually only mildly ill or may appear uninfected, but classically, symptoms include swollen, stiff joints, arthritis, and fever. Ehrlichia ewingii is spread by the bite of the lone star tick (Amblyomma americanum).
In dogs, ehrlichiosis is caused by three Ehrlichial species, namely Ehrlichia canis, E. ewingii, and E. chaffeensis; however, E. canis is the pathogen that most affects platelets, monocytes, and granulocytes.
Canine ehrlichiosis is usually caused by the rickettsia Ehrlichia canis, although other types of Ehrlichia are sometimes involved. (Rickettsiae are a specialized type of bacteria that live only inside other cells.)
25 kwi 2023 · Ehrlichia canis is the most common bacterial species to cause canine ehrlichiosis. Across North America, dogs are primarily exposed to Ehrlichia canis through the bites of brown dog ticks...
Profile. DEFINITION Caused by small, pleomorphic, gram-negative, coccoid bacteria that are obligate intracellular parasites (Table). Bacteria appear intracytoplasmically in clusters called morulae (Figure 1) and can be divided into three classes based on whether they infect mononuclear cells, granulocytes, or thrombocytes.
