brucella

A genus of encapsulated, nonmotile bacteria (family Brucellaceae) containing short, rod-shaped to coccoid, gram-negative cells. These organisms do not produce gas from carbohydrates and are parasitic. They invade all animal tissues and infect the genital organs, the mammary gland, and the respiratory and intestinal tracts; are pathogenic for humans and various species of domestic animals. The type species is Brucella melitensis.

A genus of encapsulated, nonmotile bacteria containing short, rod-shaped to coccoid, gram-negative cells. These organisms are parasitic, invading all animal tissues and causing infection of the genital organs, the mammary gland, and the respiratory and intestinal tracts, and are pathogenic for humans and various species of domestic animals.

A family of bacteria (order Eubacteriales) containing small, coccoid to rod-shaped, gram-negative cells which occur singly, in pairs, in short chains, or in groups. The cells may or may not show bipolar staining. Motile and nonmotile species occur; motile cells are peritrichous. V (phosphopyridine nucleotide) and/or X (hemin) factors are sometimes required for growth. Blood serum may be required or may enhance growth. Increased carbon dioxide tension may also favor growth, especially on primary isolation. These organisms are parasites and pathogens that affect warm-blooded animals, including humans, rarely cold-blooded animals; formerly called Parvobacteriaceae; type genus is Brucella.

A family of bacteria containing small, coccoid to rod-shaped, gram-negative cells that occur singly, in pairs, in short chains, or in groups. The cells may not show bipolar staining. Motile and nonmotile species occur. These organisms are parasites and pathogens that affect warm-blooded animals, including humans. The type genus is Brucella.