catalase negative

Streptococcus mitis: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Introduction Streptococcus mitis is a Gram-positive, alpha-hemolytic bacterium commonly found as a harmless commensal in the human oral cavity, but…

3 months ago

Lactococcus garvieae: Introduction, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Introduction Lactococcus garvieae is a Gram-positive, catalase-negative, non-spore-forming coccus, typically arranged in pairs or short chains. It belongs to the…

9 months ago

Streptococcus agalactiae (GBS): Introduction, Pathogenicity, Lab Diagnosis, Treatment, and Keynotes

Introduction Streptococcus agalactiae, also known as Group B Streptococcus (GBS), is a Gram-positive, beta-hemolytic coccus arranged in chains. It is…

11 months ago