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Investigation of an outbreak in lambs associated with Escherichia coli O95 septicaemia

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Title Investigation of an outbreak in lambs associated with Escherichia coli O95 septicaemia
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Creator GG Sonawane, F Singh, BN Tripathi, SK Dixit, J Kumar, A Khan
 
Subject Escherichia coli O95, lambs, septicaemia
 
Description Not Available
A disease outbreak in lambs caused by Escherichia coli O95 during winter season at an organized farm in arid region of Rajasthan was investigated and controlled by effective therapeutic measures. Of 89 lambs, 17 (19%) died in a week with history of clinical signs such as sudden death, frothy mouth, fever, shivering, unable to walk and lying prostrate. On gross and histopathological examination upper respiratory tract and lungs were found to be the major organs affected with acute vascular changes accompanied by moderate to severe vascular alterations in other visceral organs due to septicaemic nature of the disease. Escherichia coli O95 serotype was isolated from all the tissues collected during post-mortem examination. Pathogenecity of the E. coli isolate and lung tissue suspension was tested in rabbits. The gross and microscopic lesions observed in the present outbreak and in the experimentally E. coli infected rabbits compared well. It was concluded that sudden change in environment, cold stress, dew and frost and poor ventilation might have exposed lambs to E. coli septicaemia with major involvement of respiratory system followed by other visceral organs. The mortality was checked with ciprofloxacin in combination with amoxycillin after determination of antibiotic sensitivity.
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Date 2021-07-15T09:16:03Z
2021-07-15T09:16:03Z
2012-06-01
 
Type Article
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/48141
 
Language English
 
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Publisher Not Available