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Introduction of Serratia marcescens Serratia is a member of the family, Enterobacteriaceae and it is a Gram-negative, facultatively anaerobic, rod-shaped lacking spore and capsule bacterium. This is a Gram-negative rod/ bacilli that thrive in moist environments. It frequently contaminates solutions and hospital equipment and the human reservoirs are …
Introduction of Hafnia alvei Hafnia alvei is a members of the Enterobacteriaceae and it is inhabited in our gastrointestinal tract and also in many animal species as part of the normal microflora. It is a Gram negative rod, non capsulated and non-sporing bacterium motile with …
Introduction of Enterobacteriaceae The family Enterobacteriaceae was first proposed by Rahn in 1936 and it is a very large group of gram-negative bacteria that possess a number of common morphological and biochemical properties and similar DNA base compositions. The widely used systems for the classification …
Introduction of LF and NLF Gram-Negative Bacteria on MacConkey Medium MacConkey agar/ medium is recommended for use as a selective, differential, and indicator growth medium for the isolation of gram-negative bacilli including coliform organisms and enteric pathogens, on the basis of lactose fermentation. Peptones (meat …
Introduction of India Ink Preparation Cryptococcal meningitis occurs in immunodeficient patients and when meningitis is clinically suspected, for example, patients with HIV/AIDS, or when yeast cells with lymphocytes are detected when performing Cerebrospinal fluid (CSF) cell count or examining Gram smear, examine India ink preparation …
Introduction “Negative Pressure HEPA Filtration Unit” is useful for hospital (isolation ward that keeps patients with infectious illnesses or immunocompromised individuals who are susceptible to infections from others, away from other patients, visitors, and healthcare workers) and molecular laboratory (Sample Aliquoting and RNA Extraction Room …
Introduction of Haemophilus The genus Haemophilus is a pleomorphic Gram-negative coccobacilli fastidious bacteria and thus they do not grow on an ordinary medium like nutrient agar and they need chocolate agar to grow (H. influenzae) due to having X, V, and both X and V growth factors in it. …
Definition of Dermatophytes Dermatophytes are a common label for a group of three types of keratinophilic fungi that infect keratinized tissues causing diseases known as dermatophytoses and they are Trichophyton, Microsporum, and Epidermophyton that commonly cause skin, nail, and hair disease in our body. Differences among Trichophyton, Microsporum, and Epidermophyton The …