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Bacillus and Bacilli

rainbow
in Microbiology and Immunology

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  • 6 months later...

ya i agree with Mr Skeptic

Bacilli, with a capital letter but not italicised, is a class of bacteria.

Bacillus, with a captial and italicised, is a genus of bacteria

bacillus (bacilli plural), not capitalised or italicised, refers to any rod-shaped bacterium.

 

all are from the same root, the diminutive form of the latin 'baculum' which means stick, so bacillus means (literally) 'little stick'.

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