: Disrupting the structure that protects the bacteria.
Antimicrobics work by targeting essential biological processes in microbes that are absent or different in human cells. The five primary targets in bacteria include:
Testing is used to determine which specific antimicrobic will be effective against a particular pathogen. Common methods include:
This guide provides an overview of (antimicrobial agents), covering their definitions, how they are tested in clinical settings, and the principles for using them effectively to combat resistance. 1. Defining Antimicrobics
: Specifically refers to antimicrobial substances naturally produced by microorganisms (like penicillin) or their semi-synthetic derivatives.
: Preventing the transcription of genetic code. 3. Antimicrobic Susceptibility Testing (AST)
"Antimicrobic" is a broad term used for any compound that . While often used interchangeably with "antibiotic," there are key distinctions:
: Antibiotic-impregnated discs are placed on a bacterial "lawn." The resulting Zone of Inhibition (the clear area where no growth occurs) is measured to categorize the organism as Sensitive (S) , Intermediate (I) , or Resistant (R) .