targeted drug resistance

Targeted drug resistance occurs when microorganisms like bacteria or viruses change in ways that make medications less effective. These changes, often involving genetic mutations, allow the microbes to survive despite treatment. As a result, the drug no longer fully controls or kills the pathogen, which can lead to persistent infections or the spread of resistant strains. This resistance can develop from inappropriate use of medicines or incomplete treatments. Understanding targeted drug resistance helps in developing new therapies and proper usage strategies to manage and prevent treatment failures.