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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These soft tissues include subcutaneous tissues, the tongue, lymph nodes, lungs, and various tissues in the gastrointestinal tract.

These lesions had been confused with neoplasms, nasal polyps or exuberant granulation tissue [ 7 ]. Information on the name and the taxonomic classification. Received Aug 1; Accepted Oct 5. The authors thank Mr. Author information Article notes Copyright and License information Disclaimer.

It is more commonly associated with animals than with humans. Thus, a diagnosis of atypical actinobacillosis caused by A. Atypical distribution of granulomatous lesions with A. Open in a separate window. Gross examination showed the peritoneum and mesentery lignierseii of numerous nodules of various sizes. Information on morphological and physiological properties Morphology and physiology. Information on genomic background e.

Actinobacillosis – Wikipedia

Views Read Edit View history. A lot of neutrophils and macrophages infiltrate around the actinobacilkus. Information on culture and growth conditions Culture and growth conditions. Actinobacillys Enteroinvasive Enterohemorrhagic O The disease affected 40 of lactating cows in a dairy herd, and 5 of two-y-old steers in a beef herd. All articles with dead external links Articles with dead external links from October Articles with permanently dead external links Infobox medical condition.


Section Name and taxonomic classification Morphology and physiology Culture and growth conditions Isolation, sampling and environmental information Application and interaction Molecular biology Strain availability. The injury results in different forms and locations of the disease depending on the location of the tissue.

For referencing data from this strain:. Bovine actinobacillosis is typically characterized by pyogranulomatous glossitis wooden tongue. However, atypical actinobacillosis is also common. Information on isolation source, the sampling and environmental conditions Isolation, sampling and environmental information.

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

StrainInfo introduces actinobacilljs passports for microorganisms. In the case reported here, tuberculosis, nocardiosis and actinomycosis were also suspected for a differential diagnosis, however, immunohistochemical analysis and isolation, identification and genetic sequencing of isolate denied these diseases and confirmed the diagnosis of A.

One steer had an exophytic pyogranuloma in the gingiva and another died because of ruminal catinobacillus secondary to oropharyngeal and esophageal obstruction by a pyogranulomatous mass. However, the isolate was susceptible to sulfamethoxazole-trimethoprim. 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 ].


Some coccidial schizonts were observed at the mucosa of the jejunum. Rickettsia akari Rickettsialpox Orientia actiobacillus Scrub typhus. In our case, the stress of transportation is a likely predisposing factor for the infection. Distilled water make up to Gross finding of the peritoneum showing extensive adhesion to the intestine. Animal 2 died of severe fibrinous pneumonia.

Atypical actinobacillosis in bulls in Argentina: Therefore, additional investigations will be oignieresii to confirm the difference of pathogenicity among the conventional strains of A.


The susceptibility of this bacterium to sulfamethoxazole-trimethoprim is important, because of the rare zoonotic potential of A. Necropsy was performed on both animals. Retrieved 7 October Only first 5 entries are displayed. Vibrio cholerae Cholera Vibrio vulnificus Vibrio parahaemolyticus Vibrio alginolyticus Plesiomonas shigelloides.

Atypical cutaneous actinobacillosis in young beef cattle.