General Article | Veterinary Pathology

Hemorrhagic Septicemia- A Challenge for Field Veterinarians

Department of Veterinary Pathology, College of Veterinary Science and Animal Husbandry, Anjora Dau Shri Vasudev Chandrakar Kamdhenu Vishwavidyalaya, Durg-491001, Chhattisgarh, India

Abstract

Hemorrhagic septicemia (HS) is a lethal and septicemic disease of cattle and buffalo caused by Pasteurella multocida and leads to major cause for production losses. The serotyping techniques differentiate Pmultocida into five capsular serogroups (A, B, D, E, and F) and 16 physical serotypes (1 to 16). The capsule and liposaccharide leads to bacterial avoidance of phagocytosis and its survival in the cattle. Organism remains as common salin bronchi, terminal bronchioles and alveoli. The onset of the monsoon and stress in animals favours the precipitation of outbreaks. Aflatoxicosis in animals lead to immune suppression which also favours the disease outbreak. Clinical signs includes pyrexia, anorexia, dyspnea, swelling of the throat-forelimb region, tympany, nasal discharge, profuse salivation, lethargy, recumbency and death. The prominent lesions observed at necropsy was congestion of the lungs with consolidation and pleural adhesions of the apical lobes, pleurisy, edematous swelling of the throat and dewlap. Various molecular techniques were available for the diagnosis of the disease. However, “prevention is better than cure” and could be achieved by vaccination in order to prevent diseases.

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