Antibiotic stewardship

Methicillin-resistant Staphylococcus aureus (MRSA): Introduction, Morphology, Pathogenicity, Symptoms, Lab Diagnosis, Treatment, Prevention, and Keynotes

by
Nasal Methicillin-resistant Staphylococcus aureus (MRSA) Carriage expressing Cefoxitin and Oxacillin Resistance on Muller-Hinton agar (MHA)

Introduction Methicillin-resistant Staphylococcus aureus, commonly known as MRSA, is a type of bacteria that has developed resistance to multiple antibiotics, including methicillin and other beta-lactam antibiotics like penicillin and cephalosporins. Staphylococcus aureus is a bacterium that can naturally colonize the skin and mucous membranes of …

Read more

E. cloacae: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

by
E. cloacae mucoid growth on CLED agar of Urine Culture

Introduction Enterobacter cloacae is a Gram-negative bacterium belonging to the Enterobacteriaceae family. It is a non-motile, facultative anaerobic, rod-shaped bacterium with a characteristic ability to ferment lactose. The name “cloacae” is derived from the Latin word “cloaca,” which means sewer or drain, indicating the bacterium’s …

Read more

Pseudomonas aeruginosa: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

by
Pseudomonas aeruginosa non-lactose fermenting (NLF) colony and mucoid lactose fermenting colony of Klebsiella pneumoniae on MacConkey medium

Introduction Pseudomonas aeruginosa is a Gram-negative bacterium that is widely distributed in nature and is known for its versatility and adaptability. It is an opportunistic pathogen capable of causing infections in humans, particularly in individuals with weakened immune systems or underlying medical conditions. P. aeruginosa …

Read more

Antimicrobial Susceptibility Testing (AST): Introduction, Principle, Test Methods, Test Requirements, Procedure, and Result Interpretation, Application, and Keynotes

by
Antimicrobial Susceptibility Testing (AST): Introduction, Principle, Test Methods, Test Requirements, Procedure, and Result Interpretation, Application, and Keynotes

Introduction Antimicrobial Susceptibility Testing (AST) is a laboratory technique used to assess the effectiveness of antimicrobial agents, such as antibiotics, against specific microorganisms. The aim of AST is to determine the susceptibility or resistance of a microorganism to different antimicrobial drugs. This information is crucial …

Read more