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*Sudden outbreak
*Sudden outbreak
*Affects birds of all ages
*Affects birds of all ages
*Predominant losses in males
*Sudden loss in hens that have history of Artificial Insemination (A.I.) 4- 5 days previously
*Sudden death without clinical signs in many birds
*Sudden death without clinical signs in many birds
*Prior to death some birds may have an unsteady gait and appear weak
*Prior to death some birds may have an unsteady gait and appear weak
*Dark, purplish, swollen snoods are seen on affected males
*Dark, purplish, swollen snoods are seen on affected males
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== Pathology ==
'''Gross'''
*Enlarged friable liver, [[Spleen - Anatomy & Physiology|spleen]] and kidney
*Enlarged friable liver, [[Spleen - Anatomy & Physiology|spleen]] and kidney
*Lesions concurrent with septicaemia and congestion
*Lesions concurrent with septicaemia and congestion
*Petechial haemorrhage in abdominal fat
*Petechial haemorrhage in abdominal fat
*Haemorrhage in heart muscle
*Haemorrhage in heart muscle
*Arthritis and vegetative endocarditis and emaciation with chronic infections
*Arthritis and vegetative endocarditis and emaciation with chronic infections
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'''Microscopic'''
*Sinusoidal channels and blood vessel engorgement in most organs
*Aggregations of fibrin and bacteria in capillaries and venules
*Oedma and haemorrhage in lung and heart
*Necrosis of parenchymal cells in the liver, spleen and kidney
== Diagnosis ==
*Presumptive diagnosis based on history, clinical signs and post mortem
*Rapid presumptive diagnosis by gram-stained smears of liver, spleen and kidney and bone marrow will enable immediate treatment
*Culture of the organism from dead birds is effective, but will not produce quick enough results for treatment of the flock
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== <br><br><br><br><br><br><br><br><br><br><br><br><br><br> ==
[[Category:Alimentary_Diseases_-_Birds]] [[Category:Musculoskeletal_Diseases_-_Birds]] [[Category:To_Do_-_Kate]] [[Category:Cardiovascular_Diseases_-_Birds]]
[[Category:Alimentary_Diseases_-_Birds]] [[Category:Musculoskeletal_Diseases_-_Birds]] [[Category:To_Do_-_Kate]] [[Category:Cardiovascular_Diseases_-_Birds]]