Natural lymphatic ('atypical') actinobacillosis in cattle caused by Actinobacillus lignieresii
| Autor: | Federico Giannitti, Melissa Macías Rioseco, Carlos Schild, Martín Fraga, Cecilia Monesiglio, Laura Casaux, Rubén D. Caffarena, Franklin Riet-Correa, Ana Rabaza |
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| Rok vydání: | 2017 |
| Předmět: |
Actinobacillosis
Male 0301 basic medicine Pathology medicine.medical_specialty Meat Glossitis 040301 veterinary sciences Actinobacillus lignieresii Cattle Diseases Disease Outbreaks 0403 veterinary science 03 medical and health sciences RNA Ribosomal 16S Animals Lactation Medicine Full Scientific Reports Phylogeny General Veterinary biology business.industry Actinobacillus 04 agricultural and veterinary sciences Ruminal tympany biology.organism_classification medicine.disease Dairying 030104 developmental biology Lymphatic system Cellulitis Florida Uruguay Cattle Female Lymph Nodes Lymph business |
| Zdroj: | Journal of Veterinary Diagnostic Investigation. 30:218-225 |
| ISSN: | 1943-4936 1040-6387 |
| DOI: | 10.1177/1040638717742621 |
| Popis: | Bovine actinobacillosis is typically characterized by pyogranulomatous glossitis (wooden tongue). The involvement of other tissues, generally the skin or lymph nodes, has been regarded as atypical or cutaneous. We describe herein 2 outbreaks of actinobacillosis affecting primarily the lymph nodes of the head and neck. The disease affected 40 of 540 lactating cows in a dairy herd, and 5 of 335 two-y-old steers in a beef herd. Multiple or single, occasionally ulcerated nodules were observed in the region of the mandible, neck, and shoulder, including the parotid, submandibular, retropharyngeal, and prescapular lymph nodes. The histologic lesions were multifocal pyogranulomatous lymphadenitis, dermatitis, and cellulitis with Splendore–Hoeppli material. One steer had an exophytic pyogranuloma in the gingiva and another died because of ruminal tympany secondary to oropharyngeal and esophageal obstruction by a pyogranulomatous mass. Actinobacillus lignieresii was isolated from the lesions and identified by amplification, sequencing, and analysis of the 16S ribosomal (r)DNA gene. Seven of 8 cows recovered after treatment with sodium iodide. Lymphatic actinobacillosis is a frequent disease in Uruguay, southern Brazil, and Argentina. Morbidity is 1–50%; mortality is |
| Databáze: | OpenAIRE |
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