Actinobacillus

MacInnes, Janet I.

doi:10.1002/9780470958209.ch19

Cited by 7 publications

(10 citation statements)

References 139 publications

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“…have been associated with peritonitis, reproductive failure, respiratory disease, or other sporadic infections in horses. 9,10,17,27 In the current study, Actinobacillus spp. were associated with septicemia, meningitis, pneumonia, abortion, synovitis, osteomyelitis, tendonitis, lymphadenitis, endocarditis, guttural pouch inflammation, and cutaneous abscesses.…”

Section: Discussionmentioning

confidence: 62%

“…are normal inhabitants of the gastrointestinal tract, loss of mucosal integrity allowed access to intestinal lymphatics and the blood stream, thus resulting in lymph node or blood colonization, as previously suggested. 17 Adult equine actinobacillosis can be associated with concurrent infectious agents or stressful events. 5,21,31 In 4 of the 8 necropsied adult horses (A1, A3, A5, and A6), concurrent infections were found with enteric Salmonella spp., septicemic E. coli, Streptococcus spp., or respiratory viruses.…”

Section: Discussionmentioning

confidence: 99%

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A retrospective study of equine actinobacillosis cases

et al. 2014

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Abstract. Several Actinobacillus spp. are common commensal bacteria of the oral cavity, gastrointestinal tract, and reproductive tract of horses and can cause disease in both foals and adults. The current retrospective study was designed to review Actinobacillus spp. isolated from clinical samples or necropsies of 99 horses during 1999-2011. The cases consisted of 43 foals (<6 months of age), 4 young adults (6 months-2 years), 39 adults (>2 years of age), 2 aborted fetuses, and 11 with unspecified ages. Clinical history, signs, bacterial species isolated, and associated lesions were documented. Actinobacillus spp. were isolated 111 times. The most common isolates were Actinobacillus equuli subsp. equuli (38.7%) and hemolytic Actinobacillus spp. (24.3%). Other isolates were Actinobacillus lignieresii (5.4%), Actinobacillus pleuropneumoniae (1.8%), and unclassified Actinobacillus spp. (28.8%). Actinobacillus equuli subsp. equuli was most commonly isolated from clinical and necropsy cases of septicemia and respiratory disease in both foals and adults. Embolic nephritis, the classical septicemic lesion of equine neonatal actinobacillosis, was also present in several adult septicemic actinobacillosis cases. Predisposing factors such as failure of passive transfer of colostral antibodies as well as concurrent pathogenic bacterial or viral infections were present in numerous actinobacillosis cases. There were many cases, however, for which a predisposing factor or concurrent infection was not documented or apparent, suggesting that Actinobacillus spp. can be primary pathogens under the right circumstances and in the right location.

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Section: Discussionmentioning

confidence: 62%

Section: Discussionmentioning

confidence: 99%

A retrospective study of equine actinobacillosis cases

et al. 2014

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“…In Argentina, "wooden tongue" is frequent during the summer affecting mainly young animals (fattening steers and heifers) (Späth et al 2004). Nevertheless there are also reports of unusual presentations with high prevalence affecting precrural, prescapular, and popliteal lymph nodes, and skin lesions in feedlot cattle (Dirksen et al 2005, MacInnes 2010). …”

Section: Atypical Actinobacillosis In Bulls Inmentioning

confidence: 99%

Atypical actinobacillosis in bulls in Argentina: granulomatous dermatitis and lymphadenitis

et al. 2013

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Pesq. Vet. Bras. 33(1):1-4, janeiro 2013 1 RESUMO.-[Actinobacilose atípica em touros na Argentina: dermatite granulomatosa e linfadenite.] A actinobacilose é causa comum de infecções esporádicas em bovinos. Esta afeção tem sido caracterizada como uma infecção piogranulomatosa não somente da língua como também de tecidos moles tais como linfonodos, ou outras localizações no trato digestivo e na pele. O objetivo do presente trabalho é descrever um episódio de dermatite piogranulomatosa e linfadenite que afetou um rebanho de touros na Argentina em 2010. As amostras recolhidas de um dos animais afetados permitiram o isolamento de Actinobacillus lignieresii. Observaram-se as lesões características da doença. Habitualmente não são comuns outras lesões para além das descritas como "língua de pau", no entanto, a actinobacilose deve ser incluída como um possível diagnóstico diferencial de doenças cutâneas. TERMOS DE INDEXAÇÃO: Actinobacilose, dermatite, linfadenite, bovinos.

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“…Historically, the classification of Actinobacillus species has been made on the basis of phenotypic or biochemical characteristics, which can be a difficult and unreliable task (Sternberg and Brandstrom ; MacInnes ). In an Australian study that re‐examined previously diagnosed isolates of A. equuli using a more extensive range of phenotypic tests , 7 of 16 of the isolates were demonstrated to have been misclassified as A. equuli , one of which was re‐classified as Actinobacillus capsulatus (Blackall et al .…”

Section: Discussionmentioning

confidence: 99%

“…The family Pasteurellaceae and genus Actinobacillus have undergone a long series of taxonomic revisions (Naushad et al . ) and increasing emphasis has been directed to the division of bacteria into groups based on molecular methods (MacInnes ). Our case highlights the importance of such methods in the correct identification of species, as outlined by the identification of A. capsulatus in both peritoneal and pericardial fluid at post‐mortem, as the prognosis of such cases in the future may be guarded.…”

Section: Discussionmentioning

confidence: 99%

Actinobacillus capsulatusperitonitis and chyloabdomen in a Warmblood gelding

Cullimore

Lester

Stephens

2017

Equine Veterinary Education

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Summary Primary peritonitis in horses attributable to Actinobacillus equuli has been reported in Australia, New Zealand and North America. Published reports describe a rapid response to treatment with appropriate antimicrobial and supportive treatment and an excellent prognosis for survival. To our knowledge, this is the first reported case of Actinobacillus capsulatus in the horse. The case was complicated by the development of an idiopathic chylous abdominal effusion. The report highlights the importance of molecular methods in the correct identification of bacterial species. Prognosis for horses diagnosed with Actinobacillus peritonitis may be guarded given the atypical response to appropriate antimicrobial treatment in this case.

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Actinobacillus

Cited by 7 publications

References 139 publications

A retrospective study of equine actinobacillosis cases

A retrospective study of equine actinobacillosis cases

Atypical actinobacillosis in bulls in Argentina: granulomatous dermatitis and lymphadenitis

Actinobacillus capsulatusperitonitis and chyloabdomen in a Warmblood gelding

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