Natural lymphatic (“atypical”) actinobacillosis in cattle caused by Actinobacillus lignieresii. Caffarena RD(1)(2), Rabaza A(1)(2), Casaux L(1)(2). Actinobacillosis, or Wooden Tongue is not an uncommon condition in cattle, but is generally seen sporadically in individual animals. It does not spread readily. Actinobacillosis In The Bovine. E. R. Frank. Kansas State College. Follow this and additional works at: Part of the.

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Cutaneous Actinobacillosis is reportedly uncommon, presenting actinobadillosis lesions on the flanks and thighs in the form of large ulcers or nodules which may exude pus Radostits et al, Examination of the worst affected animals showed large, firm granulomatous masses in predominantly submandibular locations. Seven of 8 cows recovered after treatment with sodium iodide.

A landholder reported cattle with excessive drooling, bottle jaw and open lesions around the jaw and neck on an extensive grazing property in Burren Junction, North Western NSW.

The situation resolved to a point that affected animals were no longer easily identifiable in the paddock. One animal was observed to have a small 5cm diameter granulomatous mass under the tongue figure 8. The recommended treatment of sodium iodide was prohibitively expensive in these cases.

Six months actinobacillosls on a nearby property at Burren Junction, 15 Angus x Hereford cows in a mob of 40 with calves at foot were observed with similar lesions. 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. We describe herein 2 outbreaks of actinobacillosis affecting primarily the lymph nodes of the head and neck.

Both of these herds were subject to considerable stresses, both nutritionally due to prolonged drought, and physiologically, with one mob teething, and the other with young calves at foot. Actinobacillosis is a zoonotic disease caused by Actinobacillus. We are unsure why the cattle on actinobacillosls first property presented with the cutaneous form in this instance. Anaplasma phagocytophilum Human actimobacillosis anaplasmosisAnaplasmosis Ehrlichia chaffeensis Human monocytotropic ehrlichiosis Ehrlichia ewingii Ehrlichiosis ewingii infection.


Retrieved 7 October The masses ranged from actinobacillksis diameter, and were not attached to bone. The infection is most commonly caused by abrasions on different soft tissues through which the bacteria, Actinobacillus lignieresii, enters. This page was last edited on 1 Octoberat Other differentials we considered were foreign bodies, grass seed abscesses, intestinal worms, Actinomycosis, granulomas and neoplastic growths.

The eruption of teeth also commonly causes an entry point for the bacteria Jubb et al, The cattle were being fed oaten hay from hay feeders in a paddock, with access to sparse pasture — this property was also affected by long term drought. Biochemistry on two affected animals showed one had a mild copper deficiency 7.

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

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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.

Actinobacillus lignieresii was isolated from the lesions and identified by amplification, sequencing, and analysis of the 16S ribosomal r DNA gene.

Most affected animals also had some degree of subcutaneous oedema in the neck. Actinobacillosis is a common diagnosis in cattle, but generally affects individual animals — it unusual to see such high numbers affected within a herd. The histologic lesions were multifocal pyogranulomatous lymphadenitis, dermatitis, and cellulitis with Splendore-Hoeppli material. One of the most common forms seen by veterinarians is mouth actinobacillosis of cattledue to Actinobacillus lignieresii.


Enterotoxigenic Enteroinvasive Enterohemorrhagic O The cattle were aged years actinobackllosis had been grazing oat stubble for the past three weeks, during which time the problem had noticeably worsened. Interestingly, both herds were eating actinobacillosia — stubble and hay — and we actinobacillisis further anecdotal reports from other landholders around the same time of cattle on oat stubble being affected with suspected wooden tongue.


None were observed to have lesions within the oral cavity. Salmonella enterica Typhoid feverParatyphoid feverSalmonellosis. From Wikipedia, the free encyclopedia. On examination, the affected cows were found to have cm diameter granulomatous lesions in the submandibular region.

Actinobacillosis, two cases

Rickettsia typhi Murine typhus Rickettsia prowazekii Epidemic typhusBrill—Zinsser diseaseFlying squirrel typhus. Faecal testing for worm eggs revealed no significant worm burden. It does not spread readily actinobcaillosis predisposing environmental conditions cause a high incidence of oral lacerations Radostits et al, Rickettsia felis Flea-borne spotted fever.

Abbatoir surveys suggest that subclinical infections are common, particularly affecting the draining actinobacilolsis nodes of the head Radostits et al Antibiotic sensitivity testing of the cultured bacteria revealed sensitivity to a range of common antibiotics including tetracyclines.