A Review of Azithromycin Resistance: Emerging Trends and Clinical Implications

Antimicrobial resistance (AMR) represents a critical global health crisis, marked by the evolution of microorganisms that circumvent the effects of antimicrobial agents. Projections suggest AMR could result in 10 million deaths annually by 2050 and incur significant economic losses. This review explores the dynamics of azithromycin resistance—a broad-spectrum macrolide antibiotic—highlighting its rising prevalence and the consequent implications for healthcare. Azithromycin resistance has notably increased, with concerning trends observed in pathogens such as Salmonella species, Escherichia coli, and Neisseria gonorrhoeae. Contributing factors include genetic mutations, horizontal gene transfer, and excessive use of antibiotics in healthcare and agriculture. This review summarizes recent studies on azithromycin resistance, focusing on global patterns, resistance mechanisms, and implications for patient care. It discusses emerging resistance genes, environmental factors, and the increasing incidence of multidrug-resistant strains. The review also addresses the need for enhanced antimicrobial stewardship, novel treatment strategies, and public health interventions to mitigate the impact of azithromycin resistance. Effective measures, including improved surveillance, targeted treatment protocols, and international cooperation, are essential to combat this growing threat and preserve the efficacy of essential antibiotics.