Spirillum is the name of two species of spiral shaped,
Gram-negative bacteria in the family Spirillaceae. The bacteria in
the family are two species, Spirillum volutans and Spirillum
winogradskyi. Spirillum have been found to be the cause of rat-bite
fever and Lyme disease.
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No, Spirillum is a bacteria and not a virus. It basically twists
like a spiral and there are 2 different species, Spirillum volutans
and Spirillum winogradskyi.
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Coccus, which are spheres, bacillus, which are rods, and
spirillum, which are spiral-shaped