Antibiotic

Second-Line Drug Susceptibility Testing (SL-DST) for Tuberculosis:Introduction, Principle, Procedure, Result-Interpretation, and Keynotes

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Phenotypic drug susceptibility testing (DST) of Mycobacterium tuberculosis using the BACTEC MGIT 960 system

Introduction Second-line drug susceptibility testing (SL-DST) for tuberculosis is a crucial laboratory procedure designed to detect resistance to anti-TB drugs used when first-line treatment fails (i.e., multidrug-resistant TB – MDR-TB).  Principle SL-DST measures the susceptibility of Mycobacterium tuberculosis to specific agents by determining the Critical …

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Susceptible Dose-Dependent (SDD) Antimicrobial Phenotype- Introduction, Clinical Significance, and Keynotes

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Susceptible Dose-Dependent (SDD) Antimicrobial Phenotype- Introduction, Clinical Significance, and Keynotes

Introduction The susceptible dose-dependent (SDD) antimicrobial phenotype is a critical concept in microbiology. It indicates pathogens that require higher doses of antimicrobials for effective treatment. Clinicians must adjust doses to surpass the standard levels. This adjustment ensures the drug’s efficacy against partially resistant pathogens. Moreover, …

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Rifampicin Resistant Indeterminate- Introduction, Result, Cause, Implication, and Summary

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Rifampicin Resistant Indeterminate result of Mycobacterium tuberculosis

Introduction “Rifampicin resistant indeterminate” refers to an unclear or inconclusive result in testing for resistance to the antibiotic rifampicin, often used in the treatment of tuberculosis (TB). Here’s a breakdown of the term: Rifampicin Resistant Result and Cause Indeterminate Result: This means the test did …

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Penicillium: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

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Penicillium colony morphology on fungal culture medium

Introductio Penicillium is a genus of mold that belongs to the family Aspergillaceae within the fungal kingdom. It is one of the most important and well-known groups of fungi, particularly due to its significant impact on medicine, industry, and food production. The name “Penicillium” originates …

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