VEILLONELLA AGAR BASE

Veillonella are gram-negative cocci that are the anaerobic counterpart of Neisseria. These non-motile diplococci are part of the normal flora of the mouth and have been encountered in patients with oral bite wound, head, neck, and miscellaneous soft tissue infections. The most common species isolated from humans is Veillonella parvula. Veillonella species are negative for the routine biochemical test, employed in bacterial identification with the exception of an occasional strain being positive for catalase. Veillonella Agar was first developed by Rogosa and later modified by Rogosa et al. It is used as a selective medium for the isolation of Veillonella. Veillonella species are isolated from the gastrointestinal tract and oral cavity specimens. Few streptococci and diphtheroids can also grow on this medium.

for selective isolation of Veillonella species