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In addition, blood tests may show abnormalities in the numbers of red blood cells, white blood cells, and most commonly platelets, if the disease is present. Uncommonly, a diagnosis can be made by looking under a microscope at a blood smear for the presence of the ehrlichia morulae , which sometimes can be seen as intracytoplasmic inclusion ...
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.
It is caused by Ehrlichia ruminantium (formerly Cowdria ruminantium)—an intracellular Gram-negative coccal bacterium (also referred to as Rickettsia ruminantium). The disease is spread by various Amblyomma ticks, and has a large economic impact on cattle production in affected areas.
Anaplasma phagocytophilum (formerly Ehrlichia phagocytophilum) [2] is a Gram-negative bacterium that is unusual in its tropism to neutrophils. It causes anaplasmosis in sheep and cattle, also known as tick-borne fever and pasture fever , and also causes the zoonotic disease human granulocytic anaplasmosis .
Ehrlichia chaffeensis causes human monocytic ehrlichiosis. E. chaffeensis is most common in the south-central and southeastern states. Ehrlichia canis; Neorickettsia sennetsu; Ehrlichia muris eauclairensis [7] Ixodes scapularis is another type of tick that can spread Ehrlichiosis muris eauclairensis. [8] The latter three infections are not well ...
Ehrlichia canis is a small, obligate-intracellular, tick-transmitted, Gram-negative α-proteobacterium. This species is responsible for the globally distributed canine monocytic ehrlichiosis . E. canis also shows evolution in its complex membrane structures and immune evasion strategies.
Along with Döhle bodies and toxic vacuolation, which are two other findings in the cytoplasm of granulocytes, toxic granulation is a peripheral blood film finding suggestive of an inflammatory process. [1] Toxic granulation is often found in patients with bacterial infection and sepsis, [1] [2] although the finding is nonspecific. [3]
A typical (uninfected) monocyte on blood smear. Anaplasma bovis is a gram negative obligate intracellular bacteria. [8] The bacteria lives within the mononuclear cells of cattle, specifically monocytes. When the bacteria is suspected you can take a blood smear and observe the cells for presence of A. bovis within.