Bordetella bronchiseptica(redirected from CDC group IVa)
Also found in: Medical.
Bordetella bronchiseptica[‚bȯr·də‚tel·ə ‚braŋ·ki′sep·ti·kə]
An aerobic, gram-negative bacterium that is a pathogen in many domestic and wild mammals, including horses, swine, dogs, and rodents, and may cause a variety of respiratory diseases in them.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.