Tag: Staphylococcus

Biochemical Test and Identification of Staphylococcus epidermidis 4.78/5 (18)

Biochemical Test and Identification of Staphylococcus epidermidis

Biochemical Test and Identification of Staphylococcus epidermidis ­Basic Characteristics Properties (Staphylococcus epidermidis) Capsule Mostly Capsulated Catalase Positive (+ve) Citrate Negative (-ve) Coagulase Negative (-ve) Gas Positive (+ve) Gelatin Hydrolysis Negative (-ve) Gram Staining Positive (+ve) H2S Positive (+ve) Hemolysis Negative (-ve) Motility Negative (-ve) MR (Methyl Red) Negative (-ve) Nitrate Reduction Positive (+ve) Oxidase Negative […]

Community Acquired MRSA vs Hospital Acquired MRSA 4.52/5 (31)

Community Acquired MRSA vs Hospital Acquired MRSA

Community Acquired MRSA vs Hospital Acquired MRSA S.N. Characteristics Community Acquired MRSA (CA-MRSA) Hospital Acquired MRSA (HA-MRSA) 1. Clinical Infection Skin, Soft tissue, necrotizing pneumonia Pneumonia, urinary, bloodstream, surgical site (multiple site) 2. At risk populations Clusters and outbreaks in closed populations (prisoners, athletes, military, selected ethnic populations, intravenous drug users, soldiers) Outbreaks are associated […]

Virulence Factors of Staphylococcus 4.6/5 (72)

Virulence Factors of Staphylococcus

Virulence Factors of Staphylococcus A.   Cell Wall Associated Virulence Factors Functions Peptidoglycan – Pyrogenicity – Complement Activation – Inhibition of leukocyte migration Techoic Acid – Adherence to mucosal surfaces Capsule – Diffusion Barrier – Prevents Phagocytosis – Capsular serotypes 5 and 8 are most frequently associated with bacteremia and infections B.   Cell Surface Associated Virulence […]

Differences Between Staphylococcus and Streptococcus 4.57/5 (303)

Differences Between Staphylococcus and Streptococcus

Differences Between Staphylococcus and Streptococcus Staphylococcus and Streptococcus are both Gram positive organisms and cocci in shape. They are Non-motile, Non-Sporing and Facultative anaerobes. But they possess some of the differences which are as follows: S.N Characteristics Staphylococcus Streptococcus 1 Arrangement Grape-like clusters. A chain of round cells. 2 Division Staphylococci divide in various directions (multiple axes). Division occurs […]

Biochemical Test and Identification of Staphylococcus aureus 4.55/5 (161)

Biochemical Test and Identification of Staphylococcus aureus

Biochemical Test and Identification of Staphylococcus aureus ­Basic Characteristics Properties (Staphylococcus aureus) Capsule Non-Capsulated Catalase Positive (+ve) Citrate Positive (+ve) Coagulase Positive (+ve) Gas Negative (-ve) Gelatin Hydrolysis Positive (+ve) Gram Staining Positive (+ve) H2S Negative (-ve) Hemolysis Positive (+ve)- Beta Indole Negative (-ve) Motility Negative (-ve) MR (Methyl Red) Positive (+ve) Nitrate Reduction Positive (+ve) […]

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