Niallia circulans

Niallia circulans is a soil-dwelling human pathogen which has been associated with "septicemia, mixed abscess infections, and wound infections", as well as with meningitis.
This species has been recently transferred into the genus Niallia. The correct nomenclature is ''Niallia circulans.''

Morphology

Staining

Gram-positive, Gram-variable or Gram-negative. Positive spore stain result.

Shape and size

Vegetative cell

Straight, occasionally curved rods, 2.0-4.2 x 0.5-0.8 μm, motile by peritrichous flagella.

Spores

Has ellipsoidal spores which are subterminal or terminal; swelling the sporangia. These are "centrally located" and either cylindrical or "Kidney-shaped".