Natural lymphatic (“atypical”) actinobacillosis in cattle caused by Actinobacillus lignieresii. Caffarena RD(1)(2), Rabaza A(1)(2), Casaux L(1)(2). Actinobacillosis is a globally prevalent infectious animal disease caused by Gram -negative bacilli of the genus Actinobacillus. Actinobacillus lignieresii is a. Species/Subspecies: Actinobacillus lignieresii. Etymology: Genus name: small ray rod (ray refers to the histological picture of radially localized club-like.

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Anaplasma phagocytophilum Human granulocytic anaplasmosisAnaplasmosis Ehrlichia chaffeensis Human monocytotropic ehrlichiosis Ehrlichia ewingii Ehrlichiosis ewingii infection. Actinobacillus suis is an important disease of pigs of all ages and can lead to severe morbidity and sudden death.

The colonies were Gram-negative bacilli on Gram stain, and those were surrounded by neutrophils, macrophages and fibroblasts and showed evidence of neovascularization Fig.

Low magnification of the abdominal mass demonstrating granuloma surrounded by ligniresii fibrous tissue. Eosinophilic club-like spicules asteroid bodies contain bacterial colonies.

Thus, a diagnosis of atypical actinobacillosis caused by A. Published online Oct Lymphangiectasia and slight to moderate inflammatory cell infiltration to the jejunal lamina propria were noted surrounding the protozoan lesions. Acknowledgments The authors thank Mr.

Clinical recognition and treatment of bovine cutaneous actinobacillosis. Gross finding of the peritoneum showing extensive adhesion to the intestine. Klebsiella pneumoniae RhinoscleromaKlebsiella pneumonia Klebsiella granulomatis Granuloma inguinale Klebsiella oxytoca Escherichia coli: Two animals died during the day quarantine period: Actinobacillosis is a zoonotic disease caused by Actinobacillus.


The occurrence of A.

Natural lymphatic (“atypical”) actinobacillosis in cattle caused by Actinobacillus lignieresii.

Acyinobacillus cholerae Cholera Vibrio vulnificus Vibrio parahaemolyticus Vibrio alginolyticus Plesiomonas shigelloides. Therefore, additional investigations will be necessary to confirm the difference of pathogenicity among the conventional strains of A. Distilled water make up to Animal 2 died of severe fibrinous pneumonia.

Actinobacillosis in bovine caesarean sections. Information on genomic background e.

Actinobacillosis – Wikipedia

Young cattle are at a risk for infection and may develop the characteristic lesions in a few days [ 8 ]. Both the peritoneum and mesentery had numerous firm nodules of varying sizes Fig. Availability in culture collections Strain availability.

The isolate was identified as A. Multiple or single, occasionally ulcerated nodules were observed in zctinobacillus region of the mandible, neck, and shoulder, including the parotid, submandibular, retropharyngeal, and prescapular lymph nodes. Mouth actinobacillosis of cattle must be differentiated from actinomycosis that affects bone tissues of the maxilla.

Natural lymphatic (“atypical”) actinobacillosis in cattle caused by Actinobacillus lignieresii.

Atypical Actinobacillus granulomas have been identified in the nasal cavity, cervical area and the lungs in cattle [ 7 ]. Journal of Veterinary Diagnostic Investigation. The infection is most commonly caused by abrasions on different soft tissues through which the bacteria, Actinobacillus lignieresii, enters.

The histologic lesions were multifocal pyogranulomatous lymphadenitis, dermatitis, and cellulitis with Splendore-Hoeppli material.

The purpose of this case study is to describe atypical A. Section Name and taxonomic classification Morphology and physiology Culture and growth conditions Isolation, sampling and environmental information Application and interaction Molecular biology Strain availability.


Foamy fluid was identified in the trachea, and blood clots were found at the tracheal bifurcation. Infectious diseases Bacterial disease: This page was last edited on 1 Octoberat It is more commonly associated with animals than with humans. In addition, to comply with animal health requirements for importing cattle to Japan from Australia, animals were treated with long-acting oxytetracycline for leptospirosis.

Petechial to ecchymotic hemorrhages were observed throughout the lungs. Temperatures Kind of temperature Temperature [Ref.: Shimada for histopathological assistance.

Name and taxonomic classification. Gross necropsy examination of animal 1 revealed extensive adhesions between the peritoneum and the intestines.

Information on morphological and physiological properties Morphology and physiology.

Actinobacillus lignieresii is a common commensal inhabitant of the ruminant oral cavity. The bacteria can cause infection by invading adjacent soft tissues after the development of a penetrating wound.

However, atypical actinobacillosis is also common. No gross lesions were found in other organs, including the brain and spinal cord. The injury results atinobacillus different forms and locations of the disease depending on the location of the tissue.

Rickettsia ligniieresii Flea-borne spotted fever. The jejunal mucosa was extensively congested and focally thickened. Received Aug 1; Accepted Oct 5. An atypical case of respiratory actinobacillosis in a cow. Actinobacillus lignieresii ApxI gene, promotor region and partial cds.