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Sphingobacterium Case Report: Introduction, Patient History, Lab Diagnosis and Treatment
Introduction of Sphingobacterium case report Sphingobacterium is a non-fermermenter, Gram-negative rod, catalase test positive, oxidase test positive, and a genus of the family Sphingobacteriaceae. The genus Sphingobacterium is characterized by the high concentrations of sphingophospholipids as lipid components. Sphingobacterium mizutaii does not on MacConkey agar but grows well on blood agar with evidence of yellow pigment. Other species of Sphingobacterium grow well on MacConkey agar. The above picture is showing the growth of Sphingobacterium mizutaii with yellow pigment after 48...
GeneXpert Test For Tuberculosis: Introduction, Principle, Procedure, Result Interpretation and Advantages
Introduction of GeneXpert Test GeneXpert test is a molecular test for tuberculosis diagnosis by detecting the presence of Mycobacterium tuberculosis (bacteria), as well as testing for resistance to the drug rifampicin. Principle of GeneXpert Test GeneXpert test is a highly sensitive and specific test for tuberculosis(TB) diagnosis that detects DNA sequences specific for Mycobacterium tuberculosis and rifampicin resistance i.e. rpoB gene. It is also called Gene Xpert because it works as its name. Requirements for GeneXpert Test 1. Kit contains-...
Bacitracin Test: Introduction, Principle, Procedure and Expected Results
Introduction of bacitracin Bacitracin is a peptide produced by Bacillus subtilis and was first isolated in 1945. It uses as an antibiotic and it disrupts Gram-positive bacteria by interfering with the cell wall and peptidoglycan synthesis. It is primarily used as a topical preparation because it can cause kidney damage when used internally. But here we discuss its diagnostic roles in microbiology. 0.04 U bacitracin uses for presumptive identification of Streptococcus pyogenes while 10 units for...