Biofilm formation

Acinetobacter baumannii complex-Introduction, Species in this group, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

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Gram-negative coccobacilli (often in pairs) of Acinetobacter baumannii complex

Introduction The Acinetobacter baumannii complex (ABC) is a group of highly resilient, opportunistic Gram-negative bacteria that pose a critical threat in healthcare settings. Classified as an “ESKAPE” pathogen, it is a leading cause of severe hospital-acquired (nosocomial) infections. The World Health Organization (WHO) categorizes carbapenem-resistant …

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

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Acinetobacter haemolyticus growth on CLED agar

Introduction Acinetobacter haemolyticus is an aerobic, non-fermenting bacterium found in nature and hospital environments. It belongs to the Acinetobacter genus, frequently causing healthcare-associated infections. It is generally considered less virulent than Acinetobacter baumannii but is increasingly recognized in human infections.  Morphology Pathogenicity Lab Diagnosis Treatment Prevention Keynotes Further Readings

Pichia kudriavzevii-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

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Pichia kudriavzevii growth on HiCrome Candida Differential Agar

Introduction Pichia kudriavzevii, formerly known as Candida krusei, is a unique budding yeast that holds a dual status as both a critical industrial organism and an emerging opportunistic pathogen.  Taxonomy: It is the teleomorph (sexual state) of Candida krusei. It has also been historically known as Issatchenkia orientalis. …

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Mycobacterium fortuitum : Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

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Mycobacterium fortuitum growth on modified Middlebrook 7H9 broth with PANTA supplement after 3 days of incubation

Introduction Mycobacterium fortuitum is a rapidly growing, nontuberculous mycobacterium (NTM). It is found ubiquitously in the environment, primarily associated with skin, soft tissue, and post-surgical wound infections. As an opportunistic pathogen that is known for its ability to grow within 7 days, it often causes infections …

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Acinetobacter ursingii: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynote

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Introduction Acinetobacter ursingii is a Gram-negative, non-fermentative, opportunistic bacterium belonging to the genus Acinetobacter. It is an uncommon species compared to Acinetobacter baumannii, but it has been increasingly recognized in healthcare-associated infections (HAIs). Reported cases include bacteremia, septicemia, pneumonia, urinary tract infections, and bloodstream infections, …

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Comparative Microscopy of Candida Species: Introduction, Table, and Keynotes

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Chlamydospores of Candida albicans found in direct clinical sample(sputum) KOH mount Microscopy (Mag.1600X)

Introduction The genus Candida comprises a diverse group of opportunistic yeasts frequently isolated from human clinical specimens. Among them, Candida albicans remains the most common cause of infections; however, non-albicans Candida species, such as C. tropicalis, C. glabrata, and C. krusei, are increasingly recognized as important pathogens in immunocompromised patients, …

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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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