Gram-positive cocci cause certain infections, including the following: Enterococcal infections. Pneumococcal infections. Staphylococcal aureus infections. Streptococcal infections. Toxic shock syndrome. Gram-positive bacteria have increasingly become resistant to antibiotics.

2019年12月18日 · Gram-positive bacteria are bacteria with thick cell walls. In a Gram stain test, these organisms yield a positive result. Here’s why knowing whether the result is positive or negative is...

2024年1月16日 · Gram-positive bacteria can cause a range of infections, from food poisoning to serious respiratory diseases. Some Gram-positive bacteria produce toxins that can cause lethal illnesses.

2023年5月30日 · Streptococcus pyogenes is a gram-positive group A cocci that can cause pyogenic infections (pharyngitis, cellulitis, impetigo, erysipelas), toxigenic infections (scarlet fever, necrotizing fasciitis), and immunologic infections (glomerulonephritis and rheumatic fever).

Gram-positive cocci are a well-recognised major cause of nosocomial infection worldwide. Bloodstream infections due to methicillin-resistant Staphylococcus aureus, methicillin-resistant coagulase-negative staphylococci, and multi-drug resistant enterococci are a cause of concern for physicians due to their related morbidity and mortality rates.

Infection due to coagulase-negative staphylococci: Epidemiology, microbiology, and pathogenesis

Staphylococci are gram-positive aerobic organisms. Staphylococcus aureus is the most pathogenic; it typically causes skin infections and sometimes pneumonia, endocarditis, and osteomyelitis. It commonly leads to abscess formation.

It is an important cause of skin and soft tissue infections (SSTIs), such as folliculitis (Figure 15–3), purulent soft tissue infections (abscesses), and impetigo (Figure 15–4). It is a common cause of bacterial conjunctivitis.

They are associated with a variety of infections, including pelvic inflammatory disease, tubo-ovarian abscesses, chronic sinusitis, chronic otitis media, aspiration pneumonia, and peritonitis. 29,90 The obligately anaerobic grampositive cocci most commonly recovered from clinical specimens are Finegoldia magna, P. anaerobius, and Peptoniphilus a...

2023年7月17日 · Staphylococcus aureus is Gram-positive bacteria (stain purple by Gram stain) that are cocci-shaped and tend to be arranged in clusters that are described as “grape-like.” On media, these organisms can grow in up to 10% salt, and colonies are often golden or yellow (aureus means golden or yellow).