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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Antibiotic sensitivity testing showed that the isolate was resistant to penicillin. The typical clinical manifestation of A. Journal of Veterinary Medicine, Series A. Actinobacillus species and their role in animal disease.

Name and taxonomic classification.

Atypical cutaneous actinobacillosis in young beef lignierssii. A Gram-negative bacillus was isolated from the nodules of the peritoneum, and the isolate was catalase and oxidase positive.

However, atypical actinobacillosis is also common.

actinobafillus Histological examination revealed chronic suppurative granulomatous peritonitis with eosinophilic rosettes surrounding colonies of Gram-negative bacilli. Both the peritoneum and mesentery had numerous firm nodules of varying sizes Fig. Atypical Actinobacillus granulomas have been identified in the nasal cavity, cervical area and the lungs in cattle [ 7 ].

Aactinobacillus distribution of granulomatous lesions with A. Furthermore, multiple granulomas have been detected in the abdomen of cows after Cesarean sections [ 3 ]. No clinical abnormalities were observed in remaining cattle.

The injury results in different forms and locations of the disease depending on the location of the tissue. Later, lesions may extend to the subcutaneous tissue and the skin, causing ulceration.


Gross finding of the peritoneum showing extensive adhesion to the intestine. Bovine actinobacillosis is typically characterized by pyogranulomatous glossitis wooden tongue.

Actinobacillosis is a globally prevalent infectious animal disease caused by Gram-negative bacilli of the genus Actinobacillus. Prokaryotic Nomenclature Up-to-date – compilation of all names of Bacteria and Actinobacilllus, validly published according to the Bacteriological Code since 1. Gross examination showed the peritoneum and mesentery consisted of numerous nodules of various sizes.

Only first actinobaacillus entries are displayed. J Vet Med Sci.

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

Information on isolation source, the sampling and environmental conditions Isolation, sampling and environmental information. Multiple or single, occasionally ulcerated nodules were observed in the region of the mandible, neck, and actinobacillux, including the parotid, submandibular, retropharyngeal, and prescapular lymph nodes. The involvement of other tissues, generally the skin or lymph nodes, has been regarded as atypical or cutaneous. The isolate was identified as A.

Numerous firm foci were disseminated throughout the peritoneum and the mesentery. Histological examination revealed that the affected peritoneum of animal 1 was composed of multiple suppurative granulomas Fig. The infection is most commonly caused by abrasions on different soft tissues through which the bacteria, Actinobacillus lignieresii, enters. It is more commonly associated with animals than with humans.


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. Shimada for histopathological assistance.

Journal of Veterinary Diagnostic Investigation. Pseudomonas aeruginosa Pseudomonas infection Moraxella catarrhalis Acinetobacter baumannii. Author information Article notes Copyright and License information Disclaimer.

Rickettsia felis Flea-borne actinobacillks fever. From Wikipedia, the free encyclopedia.

Actinobacillosis – Wikipedia

Some coccidial schizonts were observed at the mucosa of the actinibacillus. In our case, the stress of transportation is a likely predisposing factor for the infection. Open in a separate window. Infectious diseases Bacterial disease: This type of A.


Acid from D-fructose FRU. An atypical case of respiratory actinobacillosis in a cow. These soft tissues include subcutaneous tissues, the tongue, lymph nodes, lungs, and various tissues in the gastrointestinal tract. Low magnification of the abdominal mass demonstrating granuloma surrounded by extensive fibrous tissue.

Thus, acinobacillus diagnosis of atypical actinobacillosis caused by A. Klebsiella pneumoniae RhinoscleromaKlebsiella pneumonia Klebsiella granulomatis Granuloma inguinale Klebsiella oxytoca Escherichia coli: The occurrence of A.

Acid from maltose MAL. Actinobacillosis of the omentum in a cow. Actinobacillosis is a zoonotic disease caused by Actinobacillus.