Abstract

Infectious diseases continue to pose substantial challenges to global health despite significant advances in antimicrobial discovery, molecular diagnostics, vaccines, and surveillance systems. The growing burden of antimicrobial resistance (AMR), emergence of novel pathogens, climate-sensitive infectious diseases, and increasing zoonotic spillovers highlight the need for integrated public health preparedness. This narrative review examines contemporary developments in infectious disease research, focusing on antimicrobial discovery, AMR, emerging viral infections, climate-related disease threats, molecular epidemiology, digital health technologies, and health system preparedness. Literature published between 2011 and 2026 was reviewed using major scientific databases and relevant public health reports. Evidence suggests that while antimicrobial discovery from natural sources such as Streptomyces continues to provide opportunities for novel therapeutic development, the global antibiotic pipeline remains inadequate to address the rapidly growing AMR crisis. Lessons from the COVID-19 pandemic demonstrated the importance of genomic surveillance, rapid diagnostics, laboratory strengthening, vaccine innovation, and implementation science. Emerging technologies including artificial intelligence and digital health platforms have improved outbreak detection and disease monitoring; however, challenges related to infrastructure, equity, and governance remain significant. Future preparedness efforts require interdisciplinary collaboration, One Health approaches, sustainable antimicrobial stewardship, and equitable healthcare systems. Strengthening the integration between laboratory science and public health policy will be essential for improving resilience against future infectious disease threats.

Keywords

antimicrobial resistance, streptomyces, infectious diseases, public health preparedness, one health, surveillance, pandemic preparedness