What is the magnification of Staphylococcus epidermidis?

A slide of gram-stained Staphylococcus epidermidis (Bacteria, Firmicutes) seen at approximately 400x magnification. This bacterium is a gram-positive coccus that is often found in irregular clusters of cells.

Is Staphylococcus epidermidis positive for coagulase?

Staphylococcus epidermidis is a coagulase-negative, gram-positive cocci bacteria that form clusters. It is also a catalase-positive and facultative anaerobe. They are the most common coagulase-negative Staphylococcus species that live on the human skin.

What is the shape of Staphylococcus epidermidis?

epidermidis is a very hardy microorganism, consisting of nonmotile, Gram-positive cocci, arranged in grape-like clusters. It forms white, raised, cohesive colonies about 1–2 mm in diameter after overnight incubation, and is not hemolytic on blood agar.

What is the size of Staphylococcus epidermidis?

S. epidermidis cells are spherical (0.5–1.5 μm in diameter) and gram-positive. The cocci organize into tetrads and clusters.

Is Gram-positive pink or purple?

A Gram stain is colored purple. When the stain combines with bacteria in a sample, the bacteria will either stay purple or turn pink or red. If the bacteria stays purple, they are Gram-positive. If the bacteria turns pink or red, they are Gram-negative.

Does Staphylococcus epidermidis need to be treated?

epidermidis is an important pathogen in immunocompromised patients and patients who develop nosocomial bacteremia; treatment usually consists of antimicrobial therapy and removal of indwelling catheters or devices.

Is Staphylococcus epidermidis a nosocomial infections?

Staphylococcus epidermidis is nowadays regarded as the most frequent cause of nosocomial infections and indwelling medical device-associated infections.

Does Staphylococcus epidermidis cause pneumonia?

It is the leading cause of skin and soft tissue infections such as abscesses (boils), furuncles, and cellulitis. Although most staph infections are not serious, S. aureus can cause serious infections such as bloodstream infections, pneumonia, or bone and joint infections.

What is the size of Staphylococcus aureus?

aureus have particle sizes between 0.542 and 1.197 µm and aerodynamic particle sizes between 0.723 and 0.777 µm (Lutz, 2010). However, airborne bacteria are often present in clusters and/or associated with other particles.

Is S epidermidis gram-positive?

Staphylococcus epidermidis which is known as a coagulase-negative and Gram-positive Staphylococcus, is one of the five significant microorganisms that are located on human skin and mucosal surfaces with the ability of causing nosocomial infections due to the wide usage of medical implants and devices, hence until 1980 …