Brucella suis
Phylum Proteobacteria
Class Alpha Proteobacteria
Order Rhizobiales
Family Brucellaceae
Genus Brucella
Species B.suis
Blood agar plate culture of Brucella suis. (Dr. W.A. Clark 2007, Wikimedia commons)

Brucella suis is a species of the Brucella.

B.suis causes Porcine Brucellosis. There is a modified live B. suis vaccine.