Bloodstream infection

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

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Klebsiella aerogenes colony morphology on CLED agar after 24 hours of incubation

Introduction Klebsiella aerogenes (formerly Enterobacter aerogenes) is an opportunistic Gram-negative, facultative anaerobic bacterium responsible for serious healthcare-associated infections (HAIs), including bloodstream infections and pneumonia. It is highly associated with antibiotic resistance (including XDR strains) and poor clinical outcomes.  Morphology Pathogenicity & Virulence Factors Lab Diagnosis Treatment Prevention Keynotes …

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Fungemia-Introduction, Common Fungi, Clinical Feature, Lab Diagnosis, Treatment, and Prevention

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Blood fungal culture bottles containing a biphasic medium used for detecting fungal growth in fungemic patients

Introduction Fungemia refers to the presence of fungi in the bloodstream, indicating systemic fungal infection. Candida species are most commonly responsible, but other yeasts and molds may also invade the bloodstream. Fungemia is a medical emergency, especially in ICU patients, immunocompromised hosts, post-surgical cases, and …

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Vancomycin-Resistant Enterococcus faecium (VREfm)-Introduction, Detection Methods, and Keynotes

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Vancomycin-Resistant Enterococcus faecium (VREfm) colony morphology on CLED agar-Uropathogen

Introduction of Vancomycin-Resistant Enterococcus faecium (VREfm) Enterococcus faecium is a gram-positive, facultative anaerobic coccus that is part of the normal gastrointestinal flora but can cause nosocomial infections such as bloodstream infections, urinary tract infections, and intra-abdominal abscesses. Vancomycin-resistant Enterococcus faecium (VREfm) is defined as an isolate that harbors van …

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Candida auris Screening in a Simple Setup: Introduction, When to Suspect it, Identification Methods,Confirmatory Identification, and Summary Table

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Candida auris colony morphology

Introduction of Candida auris Screening in a Simple Setup Candida auris Screening in a Simple Setup is possible to presumptively identify Candida auris in a simple laboratory setup, though definitive identification typically requires advanced methods. In resource-limited or basic clinical microbiology labs, we can still …

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Acinetobacter baumannii-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

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Acinetobacter baumannii in Gram staining of sputum

Introduction Acinetobacter baumannii is a Gram-negative, non-fermenting, aerobic coccobacillus. It is an opportunistic pathogen increasingly associated with nosocomial infections, particularly in critically ill or immunocompromised patients. Notorious for its antibiotic resistance, it has become a major global health concern, particularly in ICU settings. Morphology Pathogenicity …

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Enterobacter cloacae complex: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

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Enterobacter cloacae complex (ECC) colony morphology on CLED agar

Introduction The Enterobacter cloacae complex (ECC) is a group of closely related bacterial species, including Enterobacter cloacae, Enterobacter hormaechei, and others, that can cause a variety of infections, particularly in healthcare settings. ECC is a significant cause of nosocomial (hospital-acquired) infections, including bloodstream infections, pneumonia, and urinary …

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BD BACTEC Blood Culture System: Introduction, Principle, Processing, and Keynotes

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BD BACTEC Blood Culture System_BACTEC 9050 Model-Inner View

Introduction The BD BACTEC Blood Culture System is an advanced diagnostic tool for detecting bloodstream infections. It automates microbial culture monitoring with high sensitivity and rapid turnaround time. Additionally, it employs fluorescence-based technology to measure carbon dioxide produced by microbes. Moreover, the system continuously monitors …

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Staphylococcus aureus MCQs Quiz: A Set of Questions, Options, and Answers

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Introduction Here is a Staphylococcus aureus MCQs Quiz Set with questions, options, and answers. Staphylococcus aureus MCQs Quiz 1. What type of organism is Staphylococcus aureus? A) VirusB) Gram-positive bacteriumC) Gram-negative bacteriumD) Fungus 2. How does Staphylococcus aureus appear under Gram staining? A) Gram-negative rodsB) …

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