Research Article: Raman-Based Antimicrobial Susceptibility Testing on Antibiotics of Last Resort
Abstract:
The global spread of antimicrobial resistance genes and the resultant emergence of drug-resistant bacterial strains has become a major concern in recent decades. In , the World Health Organization (WHO) compiled a list of priority pathogens, designating Pseudomonas aeruginosa (P. aeruginosa), Enterobacteriaceae, and Enterococcus faecium as critical or high priority tiers. Current treatment options for these antimicrobial-resistant pathogens are limited to last-resort antibiotics, including polymyxin B, tigecycline, and vancomycin. Fast and accurate antimicrobial susceptibility testing (AST) results are needed to prescribe appropriate antibiotics that can deal with the infection problem and ease the drug-resistant struggle; misuse of antibiotics may worsen the current situation. Moreover, early identification of “superbugs” that are non-susceptible to last-resort antibiotics is crucial for prevention and control. However, the culture-dependent AST method currently in use is time consuming and labor intensive. In addition, although the VITEK- COMPACT system—an automated AST instrument—can facilitate the process, it is not suitable for all clinically used antimicrobials, such as tigecycline and polymyxin B.
Introduction:
The global spread of antimicrobial resistance genes and the resultant emergence of drug-resistant bacterial strains has become a major concern in recent decades. In , the World Health Organization (WHO) compiled a list of priority pathogens, designating Pseudomonas aeruginosa (P. aeruginosa), Enterobacteriaceae , and Enterococcus faecium as critical or high priority tiers. Current treatment options for these antimicrobial-resistant pathogens are limited to last-resort antibiotics, including polymyxin B,…
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