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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The masses ranged from cm diameter, and were not attached to bone.


All articles with dead external links Articles with dead external links from October Articles with permanently dead external links Infobox medical condition. Six months later 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.

The situation resolved to a point that affected animals were no longer easily actinbacillosis in the paddock.

Other differentials we considered were foreign bodies, grass seed abscesses, intestinal worms, Actinomycosis, granulomas and neoplastic growths. Anaplasma phagocytophilum Human granulocytic anaplasmosisAnaplasmosis Ehrlichia chaffeensis Human monocytotropic ehrlichiosis Actinobacillowis ewingii Ehrlichiosis ewingii infection.

By using this site, you agree to the Terms of Use and Privacy Policy. Actinobacillosis is a common diagnosis in cattle, but generally affects individual animals — it unusual to see such high numbers affected within a herd.

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

Response to treatment is generally good, but recurrence is common, particularly in chronic cases Radostits et al, Affected cattle with draining pyogranulomas contaminate the environment, favoring disease transmission, and should be treated with sodium iodide or antibiotics and isolated from the herd in order to control the disease. None were observed to have lesions within the oral cavity.


Examination of the worst affected animals showed large, firm granulomatous masses in predominantly submandibular locations.

It does not spread readily unless predisposing environmental conditions cause a high incidence of oral lacerations Radostits et al, The infection is most commonly caused by abrasions on different soft tissues through which the bacteria, Actinobacillus lignieresii, enters.

Antibiotic sensitivity testing of the cultured bacteria revealed sensitivity to a range of common antibiotics including tetracyclines.

It is more commonly associated with animals than with humans. actinbacillosis

Actinobacillus actinovacillosis is a normal inhabitant of the oral cavity and rumen Radostits et al,and infection occurs due to damage to the oral mucosa.

The eruption of teeth also commonly causes an entry point for the bacteria Jubb et al, Rickettsia rickettsii Rocky Mountain spotted fever Rickettsia conorii Boutonneuse fever Rickettsia japonica Japanese spotted fever Rickettsia sibirica North Asian tick typhus Rickettsia australis Queensland tick typhus Rickettsia honei Flinders Island spotted fever Rickettsia africae African tick bite fever Rickettsia parkeri American tick bite fever Rickettsia aeschlimannii Actinobacillosi aeschlimannii infection.

It is difficult to prevent the disease except through minimizing exposure to rough or spiky feedstuffs Parkinson et al,which can prove actinobaciplosis under drought conditions. The worst affected animals were standing with necks outstretched, drooling, with stridor and heavy breathing.

Actinobacillosis, two cases

The disease affected 40 of lactating cows in a dairy acttle, and 5 of two-y-old steers in a beef herd. Actinobacillus suis is an important disease of pigs of all ages and can lead to severe morbidity and sudden death.

The bacteria is reported to survive for up to 5 days in the environment Radostitis et al,therefore in both cases it was recommended that affected cattle be removed from the rest of the herd to avoid further contamination of the paddock and feed bins.


Views Read Edit View history. Salmonella enterica Typhoid feverParatyphoid feverSalmonellosis.

Several animals had mild swelling of the tongue and reduced muscle tone Figure 7causing the tongue to protrude. One of the most common forms seen by veterinarians is mouth actinobacillosis of cattledue to Actinobacillus lignieresii.

They had been vaccinated with 5 in 1 at weaning, and had not been recently wormed. Infectious diseases Bacterial disease: A diagnosis of wooden tongue was made based on clinical signs, and the affected cows were treated with a single long acting Oxytetracycline injection.

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

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. Interestingly, both herds were eating oats — stubble and hay — and we had further anecdotal reports from other landholders around the same time of cattle on oat stubble being affected with suspected actinobavillosis tongue.

These soft tissues include subcutaneous tissues, the tongue, lymph nodes, lungs, and various tissues in the gastrointestinal tract. Faecal testing for worm eggs revealed no significant worm burden. 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.