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From Gram (“a surname") + positive, after Danish bacteriologist Hans Christian Gram, who invented the Gram staining method.
All species in this genus are Gram-positive, obligate aerobes.
Tetanus is caused by a Gram-positive bacillus, Clostridium tetani.
Abstract Peptostreptococcus anaerobius is a Gram-positive anaerobic coccus anaerobius is a Gram-positive anaerobic coccus that is widely distributed in the normal human flora.
The diphtheria bacillus is Gram-positive which means it holds the dye after the slide is rinsed with alcohol.
In particular, infants start with antibodies to viruses and gram-positive organisms, but not to gram-negative organisms.
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