Staphylococcus saprophyticus- An Overview

Staphylococcus saprophyticus

What is Staphylococcus saprophyticus? Staphylococcus saprophyticus is a Gram-positive, coagulase-negative coccus that is an important part of the group of microorganisms causing urinary tract infections (UTIs), particularly in young sexually active females. Like all Staphylococci, S. saprophyticus is also clustering Gram-positive cocci, nonmotile, non-spore-forming, and facultatively anaerobic. S. saprophyticus is a part of the normal flora in humans that colonizes the …

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Staphylococcus aureus- An Overview

Staphylococcus aureus

Image Source: ASM and Bacteria in Photos. Habitat of Staphylococcus aureus The natural habitat is mammalian body surfaces. They are normal flora of the skin and mucous membrane. Also present in the nose / the anterior nares. They can also be found in Pharynx. Found in stratified epithelial cells or mucous or serum constituents associated with these cells. Found in skin/nasal …

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Staphylococcus lugdunensis- An Overview

Staphylococcus lugdunensis

What is Staphylococcus lugdunensis? Staphylococcus lugdunensis is a Gram-positive, coagulase-negative coccus that is a part of human normal flora but recently has been associated with various skin and soft tissue infections. S. lugdunensis has a significant pathogenic potential compared with other coagulase-negative staphylococci owing to its various virulence factors. Like all Staphylococci, S. lugdunensis is also clustering Gram-positive cocci, non-motile, …

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Staphylococcus hominis- An Overview

Staphylococcus hominis

What is Staphylococcus hominis? Staphylococcus hominis is a Gram-positive coagulase-negative member of Staphylococci that exists as a commensal on the human body, especially in the areas with apocrine glands, axillae, and the pubic region. Like most other coagulase-negative Staphylococci, S. hominis is also known to cause various nosocomial or hospital-acquired infections and may occasionally cause infection in patients with abnormally …

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Staphylococcus capitis- An Overview

Staphylococcus capitis

What is Staphylococcus capitis? Staphylococcus capitis is a Gram-positive, coagulase-negative coccus, present as a part of the human normal flora mostly localized in areas around the scalp and face that have been lately associated with bacteria in neonates. Staphylococcus capitis is a coagulase-negative Staphylococci with documented potential for both human disease and nosocomial spread. It is non-motile, non-spore-forming facultatively anaerobic …

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Coagulase Test- Principle, Procedure, Types, Result, Uses

Coagulase Test

Coagulase Test Definition A coagulase test is a biochemical test that is used to differentiate Staphylococcus aureus from other Staphylococci species like S. epidermidis and S. saprophyticus on the basis of the ability to produce the coagulase enzyme. The coagulase test is an important test that differentiates the species of the genus Staphylococci into two groups; Coagulase positive Staphylococci and …

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Staphylococcus epidermidis- An Overview

Staphylococcus epidermidis - An Overview

What is Staphylococcus epidermidis? Staphylococcus epidermidis is a Gram-positive bacterium belonging to the genus Staphylococcus and is the most frequently isolated species from human epithelia. Staphylococci are known as clustering Gram-positive cocci, nonmotile, non-spore-forming facultatively anaerobic that classified into two main groups, coagulase-positive and coagulase-negative. S. epidermidis belongs to the group of coagulase-negative staphylococci (CoNS), which is different from coagulase-positive …

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Staphylococcus aureus- Lab Diagnosis, Treatment, Prevention

Staphylococcus aureus- Lab Diagnosis, Treatment, Prevention

Staphylococcus aureus are catalase-positive, gram-positive cocci which frequently colonize the skin and mucosa of humans and animals. However, it is a highly successful opportunistic pathogen and thus involved in various diseases including toxin-mediated diseases (food poisoning, toxic shock syndrome, scalded skin syndrome), pyogenic diseases (impetigo, folliculitis, furuncles, carbuncles, wound infections), and other systemic diseases. The species are characterized by the …

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20 Differences between Staphylococcus and Streptococcus

Staphylococcus and Streptococcus Differences

Staphylococcus and Streptococcus are Gram-positive and the two most common pathogenic cocci of medical importance. They are both non-motile, non-sporing, and facultative anaerobes which can be differentiated on the following grounds: S.N. Character Staphylococcus Streptococcus 1.       Cellular Arrangement Spherical cells in clusters (grape like clusters). Spherical or ovoid cells in chains or pairs. 2.       Fission/Division Irregular division in all three …

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Biochemical Test of Staphylococcus epidermidis

Biochemical Test of Staphylococcus epidermidis

Biochemical Test 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 (-ve) Pigment Negative (-ve) Shape Cocci Urease …

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