GNC

Moraxella catarrhalis: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

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Gram negative cocci in pairs (diplococci) of Moraxella catarrhalis in Gram staining of culture microscopy at a magnification

Introduction Moraxella catarrhalis is a Gram-negative, aerobic bacterium that belongs to the Moraxellaceae family. It is a non-motile, non-spore-forming bacterium, and it is typically found in the upper respiratory tract of humans as a commensal organism. Though generally considered a commensal, M. catarrhalis can also …

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Haemophilus Serotyping: Introduction, Principle, Test Requirements, Test Procedure, Result-Interpretation, Limitations, and Keynotes

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Use of bacitracin 10 U on chocolate agar for screening Haemophilus of sputum culture

Introduction of Haemophilus Serotyping Haemophilus Serotyping helps to differentiate serotypes of Haemophilus influenzae. Serotypes refer to separate groups within a species of microorganisms that all share a similar property. More specifically, each serotype has the same number of antigens on its surfaces. For example, encapsulated strains of Haemophilus influenzae may …

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Gram-Negative Bacilli and Coccobacilli Bacteria: Introduction, List of Gram-Negative Coccobacilli Bacteria and Related Footages

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Gram-Negative Bacilli and Coccobacilli of Haemophilus influenzae in Gram staining of sputum and culture while Gram-Negative Coccobacilli of Kingella

Introduction of Gram-Negative Bacilli and Coccobacilli Bacteria ‘Gram-Positive Negative (GNB)‘ is also called Gram-Negative Rods (GNR) bacteria which take safranin after decolorization and stain pink or red on Gram’s staining but the shape should be rod ( for Gram-negative bacilli) but the combination of both …

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