Rank: Species
Lineage: Bacteria;Firmicutes;Bacilli;Lactobacillales;Streptococcaceae;Streptococcus;Streptococcus suis
Description: Streptococci. Streptococci are Gram-positive, nonmotile, nonsporeforming, catalase-negative cocci that occur in pairs or chains. Members of this genus vary widely in pathogenic potential. Most streptococci are facultative anaerobes, and some are obligate anaerobes. The genus is classified on the basis of colony morphology, hemolysis, biochemical reactions, and serologic specificity. They are divided into three groups by the type of hemolysis on blood agar plates: beta-hemolytic, alpha-hemolytic or gamma-hemolytic. Serologic grouping is based on antigenic differences in cell wall carbohydrates, in cell wall pili-associated protein, and in the polysaccharide capsule in group B streptococci.Streptococcus suis. This organism is a pathogen of pigs and is responsible for a variety of diseases including meningitis, arthritis and pneumonia. These infections can have substantial economic impact within the swine industry. Occasionally this organism can infect humans causing septicemia, meningitis and endocarditis.
Reference Material:
https://www.ncbi.nlm.nih.gov/genome/?term=Streptococcus%20suis