K. pneumoniae-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

K. pneumoniae-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Introduction Klebsiella pneumoniae, often abbreviated as K. pneumoniae, is a species of Gram-negative, rod-shaped bacteria commonly found in the human digestive tract, as well as in soil and water. While it is a part of the normal flora in the human gut, K. pneumoniae can …

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Serratia liquefaciens: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Serratia liquefaciens and Klebsiella pneumoniae growth on CLED agar of Urine Culture

Introduction Serratia liquefaciens is a species of Gram-negative, rod-shaped bacteria belonging to the genus Serratia. This bacterium is known for its diverse distribution in various environmental niches, including water, soil, plants, and human-related habitats. It has also been associated with clinical infections in humans, making …

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Bloodstream Infections(BSI): Introduction, Types, Sign and Symptoms, Common Pathogens, Laboratory Diagnosis, Treatment, Prevention and Control, and Keynotes

Introduction Bloodstream infections (BSI), also known as bacteremia or septicemia, are serious medical conditions characterized by the presence of bacteria or other pathogens in the bloodstream. This condition can lead to severe health complications and even be life-threatening if not promptly diagnosed and treated. Bloodstream …

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E. aerogenes: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Enterobacter aerogenes colony morphology on CLED agar of urine culture

Introduction Enterobacter aerogenes is a bacterium belonging to the Enterobacteriaceae family, which includes several other important pathogens and opportunistic bacteria. E. aerogenes is a Gram-negative, rod-shaped bacterium that is commonly found in various environments, including soil, water, and the gastrointestinal tracts of humans and animals. …

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Pleural Fluid Culture and Sensitivity: Introduction, Report, Clinical Significance, Common Pathogens, and Keynotes

Pleural fluid for laboratory diagnosis

Introduction Pleural fluid culture and sensitivity is a diagnostic test used to identify and determine the antibiotic susceptibility of microorganisms present in the pleural fluid. The pleural fluid is a clear fluid that accumulates between the two layers of the pleura, the membrane that surrounds …

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Achromobacter xylosoxidans: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Gram negative rods (GNRs) or Gram negative bacilli (GNBs)of Achromobacter xylosoxidans in Gram staining of culture microscopy

Introduction Achromobacter xylosoxidans is a gram-negative, non-fermenting bacterium that belongs to the family Alcaligenaceae. It is an aerobic, rod-shaped bacterium known for its versatile metabolic capabilities and its widespread distribution in various environments, including soil, water, and hospital settings. Originally classified as Alcaligenes xylosoxidans, the …

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

Optochin sensitive Streptococcus pneumoniae

Introduction Streptococcus pneumoniae, commonly known as pneumococcus, is a bacterium that can cause a wide range of infections in humans. It is one of the most significant pathogens responsible for various diseases, particularly pneumonia, meningitis, and otitis media (middle ear infections). Characteristics: Transmission: Diseases caused …

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Citrobacter koseri: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Mucoid colony of Citrobacter koseri on CLED agar of urine specimen

Introduction Citrobacter koseri, formerly known as Citrobacter diversus, is a gram-negative bacterium belonging to the Enterobacteriaceae family. It is a facultative anaerobe, meaning it can grow both in the presence and absence of oxygen. The species name “koseri” is a tribute to the bacteriologist Leo …

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