Actinobacillus

Actinobacillus /Ac·ti·no·bac·il·lus/ (-bah-sil´us) a genus of potentially pathogenic schizomycetes (family Pasteurellaceae), causing granulomatous lesions.

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Actinobacillus

[ak′tinōbasil′əs]

a genus of small, gram-negative bacillus, with members that are pathogenic for humans and other animals. The species Actinobacillus actinomycetemcomitans is the cause of actinomycosis in humans.

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Actinobacillus [ak″tĭ-no-bah-sil´us]

a genus of gram-negative, nonmotile, coccoid or rod-shaped bacteria that are part of the normal microflora of mammals. The organisms are capable of infecting cattle and other domestic animals and, rarely, are associated with human infection; A. ligniere´sii is the causative agent of actinobacillosis.

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actinic cheilitis (aktin´ik),

n See cheilitis, actinic.

Actinobacillus,

n a genus of nonmobile, gram-negative aerobic and facultatively anaerobic bacteria of the family Brucellaceae.

Actinomyces

n.pl filamentous microorganisms that have been implicated in the formation of dental calculus and serve as a mode of attachment of dental calculus to the tooth surface. These microorganisms have also been found in pathologic lesions of the alveolar processes (actinomycosis).

A. israelii

n.pl a normally occurring oral bacteria that aggressively causes infection (actinomycosis) when oral health is compromised.

A. naeslundii

n a specific strain of bacteria resident in open sores in the oral cavity.

A. viscosus,

n a species of
Actinomyces occurring in high numbers in the dental plaque, cemental caries, and tonsillar crypts.

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Actinobacillus

a genus of bacteria which are gram-negative, pleomorphic rods.

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Actinobacillus actinoides

a secondary agent in seminal vesiculitis in bulls and enzootic pneumonia in calves.

Actinobacillus actinomycetemcomitans

associated with epididymitis in rams and periodontal disease and endocarditis in humans.

Actinobacillus capsulatus

the cause of arthritis and septicemia in rabbits.

Actinobacillus equuli

the cause of septicemia and subsequent focal lesions in young foals and also peritonitis in adult horses. Previously called Shigella equirulis.

Actinobacillus lignieresi

the cause of actinobacillosis of cattle and sheep, and occasionally in pigs, dogs and humans.

Actinobacillus mallei

see burkholderiamallei.

Actinobacillus pleuropneumoniae

causes severe pleuropneumonia and pleuritis in pigs. Previously Haemophilus pleuropneumoniae.

Actinobacillus salpingitidis

the proposed name for a bacteria which is isolatable from cases of salpingitis, peritonitis, airsacculitis and pneumonia in birds. Called also Pasteurella salpingitis.

Actinobacillus seminis

the cause of epididymitis and periorchitis in rams.

Actinobacillus suis

the cause of septicemia and subsequent focal lesions in young pigs.

Actinobacillus ureae

may be a cause of abortion in sows.