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Ehrlichiosis
/content/chapter/10.22233/9781905319732.chap18
Ehrlichiosis
- Author: Mathios E. Mylonakis
- From: BSAVA Manual of Canine and Feline Haematology and Transfusion Medicine
- Item: Chapter 18, pp 158 - 165
- DOI: 10.22233/9781905319732.18
- Copyright: © 2012 British Small Animal Veterinary Association
- Publication Date: January 2012
Abstract
Canine ehrlichiosis (CE) is caused by Gram-negative, obligate intracellular, pleomorphic cocci of the genus Ehrlichia. Ehrlichia canis was the first species recognized to infect dogs and it is the principal causative agent of canine monocytic ehrlichiosis. This chapter considers life cycle and epidemiology; pathogenesis; clinical presentation; diagnosis; treatment; prevention and feline ehrlichiosis.
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Figures
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18.3
Severe necrotic glossitis in a dog with myelosuppressive Ehrlichia canis infection. © 2012 British Small Animal Veterinary Association
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18.3
Severe necrotic glossitis in a dog with myelosuppressive Ehrlichia canis infection.
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18.4
Numerous petechiae and ecchymoses in the penile mucosa of a dog with acute canine CME. The haemorrhagic lesions do not disappear on pressure (diascopy). © 2012 British Small Animal Veterinary Association
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18.4
Numerous petechiae and ecchymoses in the penile mucosa of a dog with acute canine CME. The haemorrhagic lesions do not disappear on pressure (diascopy).
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18.5
Mucosal pallor and petechiation in a dog with myelosuppressive CME. © 2012 British Small Animal Veterinary Association
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18.5
Mucosal pallor and petechiation in a dog with myelosuppressive CME.
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18.6
Extensive haemorrhagic lesions in a dog with concurrent CME and L. infantum infection. © 2012 British Small Animal Veterinary Association
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18.6
Extensive haemorrhagic lesions in a dog with concurrent CME and L. infantum infection.
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18.7
Anterior chamber bleeding (hyphaema) in a dog with CME. (Courtesy Dr A. Komnenou) © 2012 British Small Animal Veterinary Association
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18.7
Anterior chamber bleeding (hyphaema) in a dog with CME. (Courtesy Dr A. Komnenou)
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18.8
(a) Haematuria in a dog with chronic CME (urine sediment, objective × 40) and (b) same dog, post mortem: several petechiae and ecchymoses in the bladder mucosa. (Courtesy Dr V. Psychas) © 2012 British Small Animal Veterinary Association
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18.8
(a) Haematuria in a dog with chronic CME (urine sediment, objective × 40) and (b) same dog, post mortem: several petechiae and ecchymoses in the bladder mucosa. (Courtesy Dr V. Psychas)
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18.9
(a) Anterior uveitis and (b) necrotic scleritis in a dog with CME. (Courtesy Dr A. Komnenou) © 2012 British Small Animal Veterinary Association
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18.9
(a) Anterior uveitis and (b) necrotic scleritis in a dog with CME. (Courtesy Dr A. Komnenou)
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18.10
(a) Hypocellular bone marrow fleck secondary to chronic CME. The flecks consist mostly of fat cells, stromal and plasma cells (Giemsa, objective × 40). (b) Normocellular bone marrow in a dog with acute CME. Several megakaryocytes are also visualized. (Giemsa, objective × 10). © 2012 British Small Animal Veterinary Association
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18.10
(a) Hypocellular bone marrow fleck secondary to chronic CME. The flecks consist mostly of fat cells, stromal and plasma cells (Giemsa, objective × 40). (b) Normocellular bone marrow in a dog with acute CME. Several megakaryocytes are also visualized. (Giemsa, objective × 10).
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18.11
Ehrlichia canis morula in a monocyte of a dog with acute CME. (buffy coat, Giemsa, original magnification × 100) © 2012 British Small Animal Veterinary Association
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18.11
Ehrlichia canis morula in a monocyte of a dog with acute CME. (buffy coat, Giemsa, original magnification × 100)