Rothia: Introduction, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynote

Rothia in Gram staining of culture at a magnification of 1000x with 8x optical zoom

Introduction Pathogenicity Lab Diagnosis Treatment Prevention Keynote Further Readings

Acinetobacter lwoffii: Introduction, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Acinetobacter lwoffii colony morphology on CLED agar

Introduction Acinetobacter lwoffii is a Gram-negative, strictly aerobic, non-motile, non-fermenting, and oxidase-negative bacterium. It belongs to the genus Acinetobacter within the family Moraxellaceae. Unlike its highly aggressive relative Acinetobacter baumannii, A. lwoffii is generally considered a commensal organism. It regularly lives as normal flora on …

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Pseudomonas putida: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, and Prevention

Pseudomonas putida colony morphology on blood agar after 48 hours of incubation

Introduction Pseudomonas putida is a versatile, Gram-negative, rod-shaped bacterium primarily known for its bioremediation capabilities but recognized as a rare opportunistic human pathogen. Found globally in soil, water, and plant roots, it thrives in diverse environments due to its unique metabolic endurance. Morphology and Characteristics …

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Geotrichum klebahnii: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, and Prevention

Lacking blastoconidia (budding yeast cells), distinguishing Geotrichum klebahnii from Trichosporon

Introduction Geotrichum klebahnii is a rare, opportunistic, yeast-like fungus that is found globally in environments like soil, dairy products, and organic waste, but can act as an emerging pathogen in humans. Along with Geotrichum candidum, it is one of the only species within its genus …

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Trichosporon species: Introduction, Morphology, Medically Important Species, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

A plastic petri dish containing a light-yellowish, finely wrinkled (cerebriform) and dry Trichosporon microbial culture with a flat, mealy (farinose) covering on PDA agar

Introduction Trichosporon is a genus of anamorphic, yeast-like basidiomycetous fungi widely distributed in nature, particularly in tropical and temperate regions. First identified by Beigel in 1865, it commonly exists as a saprophytic organism in soil, water, plants, and animal droppings. In humans, it is a …

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Saprochaete capitata:Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Saprochaete capitata in Dalmau plate technique microscopic footage

Introduction Saprochaete capitata is an emerging opportunistic fungal pathogen that causes severe, frequently fatal systemic infections in profoundly immunocompromised individuals. It is notorious for its intrinsic resistance to echinocandins and high resistance to fluconazole, which often results in breakthrough fungemia during standard empirical antifungal therapy. …

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Sphingomonas paucimobilis-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Sphingomonas paucimobilis colony morphology on CLED agar

Introduction Sphingomonas paucimobilis (formerly classified as Pseudomonas paucimobilis) is a strictly aerobic, non-fermenting, Gram-negative bacillus. It is an environmental oligotroph found widely in soil and water systems. It serves as a stealthy opportunistic pathogen in clinical settings. It can survive in nutrient-poor conditions and form …

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Alcaligenes faecalis: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Alcaligenes faecalis growth on MacConkey agar

Introduction Alcaligenes faecalis is a Gram-negative, aerobic, rod-shaped bacterium primarily found in water and soil, but also as a commensal in the human intestinal tract. While it is generally nonpathogenic, it is a significant opportunistic pathogen, particularly in hospital settings where it thrives in moist …

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