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|pagetitle =Bacillus species
 
|pagetitle =Bacillus species
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|pagebody =''Bacillus'' species are large, Gram positive rods. They are mostly non-pathogenic, environmental organisms.
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===Overview===
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*Mostly non-pathogenic environmental organisms
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*''[[Bacillus anthracis]]'' causes anthrax
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*Anthrax is a severe disease affecting all mammals worldwide
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*Ruminants are highly susceptible to anthrax, dying of a septicaemic form
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*Pigs and horses are moderately susceptible, but carnivores are fairly resistant
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*''[[Bacillus licheniformis]]'' may cause shoradic abortions in cattle and sheep
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*''[[Bacillus cereus]]'' causes food poisoning in humans and mastitis in cows
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===Characteristics===
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*Large, Gram positive rods
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*Produce endospores
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*Aerobes or facultative anaerobes
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*Grow on non-enriched media
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*Motile
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*Catalase positive, oxidase negative
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*''Bacillus anthracis'' colonies are up to 5mm diameter, flat, dry, grey, with a ground-glass appearance; curled outgrowths from the edge of the colony give a 'medusa head' appearance; non-haemolytic (differentiate from ''Bacillus cereus'')
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*''Bacillus licheniformis'' forms dull, rough, wrinkled colonies, with hair-like outgrowths
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*Biochemical tests for identification
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*Can often tolerate adverse environmental conditions
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*''CAR bacillus'' in [[Respiratory Bacterial Infections - Pathology#CAR bacillus|URT infection in cattle]] and [[Respiratory Bacterial Infections - Pathology#In Rabbits|URT infection in rabbits]]
      
[[Category:Bacteria]][[Category:Gram_positive_bacteria]]
 
[[Category:Bacteria]][[Category:Gram_positive_bacteria]]
 
[[Category:Rods]]
 
[[Category:Rods]]
[[Category:To_Do_-_Bacteria]]
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[[Category:To_Do_-_AimeeHicks]][[Category:To_Do_-_Bacteria]]
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