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Bacteriophage Applications in Clinical Resistance
Bacteriophages represent a unique class of viruses that exclusively target bacterial hosts, offering a biological alternative to traditional chemical antimicrobial agents. As the global crisis of antibiotic resistance accelerates, these natural predators are being re-evaluated for their ability to eliminate pathogens that have developed defense mechanisms against standard pharmacological protocols.
The therapeutic utility of phages lies in their host specificity and their ability to replicate at the site of infection. Unlike broad-spectrum antibiotics, which can disrupt the systemic microbiome, phages target specific strains, preserving beneficial bacteria. This targeted approach is essential for treating chronic infections where the bacterial ecology is fragile.
The biological mechanism of phage therapy is rooted in the lytic cycle. Upon identifying a compatible host through surface receptor recognition, the phage injects its genomic payload into the bacterium. This process initiates a rapid takeover of the host's metabolic machinery, shifting cellular resources toward the assembly of new…