Antibiotic Use and Antimicrobial Resistance: Insights from Science Literature

Background: Antimicrobial resistance (AMR), defined as the ability of microorganisms to withstand antimicrobial treatments, is widely recognized as one of the most serious global public health challenges. It undermines the effectiveness of antibiotics, increases healthcare costs, and contributes to higher morbidity and mortality rates worldwide.

Aims: This paper aims to provide a structured and critical review of international scientific literature on antibiotic use and its role in the emergence and spread of antimicrobial resistance, with particular attention to behavioral, institutional, and policy-related determinants.

Methodology: The study adopts a qualitative literature review approach based on peer-reviewed articles, international reports, and policy documents produced by major health organizations and academic institutions. Sources were selected according to relevance, credibility, and contribution to understanding antibiotic use patterns and antimicrobial resistance. The analysis focuses on identifying key trends, determinants, and policy responses across different healthcare settings and countries.

Results/Findings: The literature consistently shows that inappropriate antibiotic use—especially overprescription, self-medication, and non-prescription access—is a primary driver of antimicrobial resistance. These practices are shaped by multiple factors, including prescribing behavior, patient expectations, weak regulatory frameworks, and limited public awareness. Significant disparities exist between healthcare systems, particularly in low- and middle-income countries where regulatory enforcement is often insufficient. Evidence indicates that interventions such as antimicrobial stewardship programs, public awareness campaigns, and improved surveillance systems have been effective when implemented in a coordinated and integrated manner.

Conclusion: Antimicrobial resistance represents a complex and multi-dimensional challenge that requires comprehensive and coordinated responses. No single intervention is sufficient; rather, effective strategies must combine regulatory, educational, and institutional measures. Strengthening governance, enhancing awareness, and promoting responsible antibiotic use are essential for mitigating the global impact of antimicrobial resistance and ensuring sustainable healthcare outcomes.