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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Actinobacillosis of the omentum in a cow. Young cattle are at a risk for infection and may develop the characteristic lesions in a few days [ 8 ]. An actiobacillus case of respiratory actinobacillosis in a cow.

The bronchiolar lumen contained a small amount of red blood cells, necrotic cells, bacterial colonies and food debris, and moderate diffuse congestion was observed in the lung. The infection is most commonly caused by abrasions on different soft tissues through which the bacteria, Actinobacillus lignieresii, enters.

Histological examination revealed chronic suppurative granulomatous peritonitis with eosinophilic rosettes surrounding colonies of Gram-negative bacilli. National Center for Biotechnology InformationU.

Actinobacillosis – Wikipedia

Please review our privacy policy. This type of A. No bacteria were isolated from any of the other tissue samples. Actinobacillosis is a zoonotic disease caused by Actinobacillus.

Received Aug 1; Accepted Oct 5. Actinobacillus lignieresii ApxI gene, promotor region and partial cds. All articles with dead external links Actinkbacillus with dead external links from October Articles with permanently dead external acrinobacillus Infobox medical condition. Later, lesions may extend to the subcutaneous tissue and the skin, causing ulceration. Acid from sucrose SAC.


Abstract An imported crossbred Angus beef steer aged eight to twelve months died suddenly on the eighth day of a quarantine period in Japan. A lot of neutrophils and macrophages infiltrate around the granule.

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

The mesenteric lymph nodes were moderately swollen. Rickettsia felis Flea-borne spotted fever.

J Vet Med Sci. Lymphangiectasia and slight to moderate inflammatory cell infiltration to the jejunal lamina propria were noted surrounding the protozoan lesions. Information on the name and the taxonomic classification. Furthermore, multiple granulomas have been detected in the abdomen of cows actinobacillue Cesarean sections [ 3 ]. Acknowledgments The authors thank Mr.

Support Center Support Center. Rickettsia rickettsii Rocky Mountain spotted fever Rickettsia conorii Boutonneuse fever Lginieresii japonica Japanese spotted fever Rickettsia sibirica North Asian tick typhus Rickettsia australis Queensland tick typhus Rickettsia honei Flinders Island spotted fever Rickettsia africae African tick bite fever Rickettsia parkeri American tick bite fever Rickettsia aeschlimannii Rickettsia aeschlimannii infection.

Actinobacillus lignieresii infection after a horse bite. Acid from maltose MAL. The injury results in different forms and locations of the disease depending on the location of the tissue. Petechial to ecchymotic hemorrhages were observed throughout the lungs.



Some coccidial schizonts were observed at the mucosa of the jejunum. The histologic lesions were multifocal pyogranulomatous lymphadenitis, dermatitis, and cellulitis with Splendore-Hoeppli material.

Gross finding of the peritoneum showing extensive adhesion to the intestine. Both the peritoneum and mesentery had numerous firm nodules of varying sizes Fig. Ligneresii on isolation source, the sampling and environmental conditions Isolation, sampling and environmental information. Atypical Actinobacillus granulomas have been identified in the nasal cavity, cervical area and the lungs in cattle [ 7 ].

Foamy fluid was identified in the trachea, and blood clots were found at lignietesii tracheal bifurcation.

The occurrence of A. However, the infection may not be limited to the oral cavity and tongue, and can spread to the adjacent soft tissues of the mouth and regional lymph nodes [ 8 ]. Published online Oct Open in a separate window. Shimada for histopathological assistance. Klebsiella pneumoniae RhinoscleromaKlebsiella pneumonia Klebsiella granulomatis Granuloma inguinale Klebsiella oxytoca Escherichia coli: Actinobaci,lus on genomic background e.

Actinobacillus lignieresii is a common commensal inhabitant of the ruminant oral cavity. Retrieved 7 October However, atypical actinobacillosis is also common. Views Read Edit View history.