Rhombencephalitis caused by Listeria monocytogenes in a pastured bull
| Autor: | Gustavo Varela, Rodolfo Rivero, María Inés Mota, Carolina Matto, R. Gianneechini |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Male
0301 basic medicine Serotype Veterinary medicine Animal feed Silage 030106 microbiology Cattle Diseases Biology medicine.disease_cause Milking Diagnosis Differential 03 medical and health sciences Listeria monocytogenes medicine Animals Bulk tank Listeriosis Animal Husbandry Feces General Veterinary medicine.disease Animal Feed Electrophoresis Gel Pulsed-Field Encephalitis Cattle |
| Zdroj: | Journal of Veterinary Diagnostic Investigation. 29:228-231 |
| ISSN: | 1943-4936 1040-6387 |
| DOI: | 10.1177/1040638716689116 |
| Popis: | A pastured 2-y-old cross-breed bull developed brainstem encephalitis (rhombencephalitis); Listeria monocytogenes was isolated from the brain. In the brainstem, there was perivascular cuffing, multiple microabscesses, and positive immunostaining for L. monocytogenes. Samples of bovine feces, water, feedstuffs, milking parlor soil, and bulk tank milk were collected from the dairy farm. Seven isolates of the genus Listeria were obtained, 6 of L. innocua and 1 of L. monocytogenes, which was found in the pasture where the bull grazed. Both isolates belonged to serotype 4b and were positive for internalins A, C, and J. According to the DNA fragment patterns of pulsed-field gel electrophoresis, the isolates were closely related. The source of infection was the pasture, implying that listeriosis should not be discounted in cases with compatible clinical signs but the absence of silage feeding. |
| Databáze: | OpenAIRE |
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