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Actinobacillus equuli

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Definition

Noun

A gram-negative commensal rod-shaped bacterium involved in pathogenic infections in foals causing septicemia to the newborn directly infected through respiratory tract immediately after birth.

Supplement

Actinobacillus equuli is commonly infects foals and swine that serves as a causative agents of sleepy foal disease wherein these bacterium occurs naturally as a commensal on the mucosal membranes of the adult horses. In rare case it acts as an opportunistic pathogens in pigs manifested with abortion, polyarthritis and septicemia.

Actinobacillus equuli has been isolated in kidney and lung tissues in which it is positive in both oxidase and urease test. It is also sensitive to some antibiotics including tetracycline, trimethoprin, neomycin, spectinomycin, ceftiofur and ampicillin.

Actinobacillus equuli is associated with meningitis, metritis, endocarditis and abortion among adult horses.

Scientific classification:

 Kingdom: Bacteria
 Phylum: Proteobacteria 
 Class: Gammaproteobacteria
 Order: Pasteurellales
 Family: Pasteurellaceae
 Genus: Actinobacillus
 Species: Actinobacillus equuli 

See also:

• Bacteria

• Septicemia