Dr. Siddhant Jai Tyagi is a Ph.D. scholar in Pharmacy at Teerthanker Mahaveer University, Moradabad, with an M.Pharm degree and research experience in pharmacology and neurodegenerative disorders. His current doctoral research focuses on the ameliorative role of Indoleamine 2,3-Dioxygenase inhibitors in neurodegenerative disorders.

He has published research and review articles in journals including Wiley, Springer Nature, Bentham Science, and Molecular Neurobiology, and has contributed to several academic book chapters. His research interests include neurodegenerative diseases, pharmacology, drug delivery, and biomedical research. He has also received a Young Scientist Award for his research contributions.

Emerging Infectious Diseases in a Changing World: Global Perspectives, Vaccine Innovation, and Strategies for Prevention and Pandemic Preparedness:                                              Emerging and re-emerging infectious diseases continue to pose significant challenges to global health, healthcare systems, economies, and social stability. The rapid emergence of novel pathogens, antimicrobial resistance, climate change, urbanization, environmental disruption, international travel, and increasing human–animal interactions have created conditions that facilitate the spread of infectious diseases across geographical boundaries. Recent outbreaks have highlighted the importance of rapid surveillance, early detection, effective risk communication, equitable healthcare access, and coordinated international responses. Vaccination remains one of the most effective approaches for preventing infectious diseases and reducing disease-associated morbidity and mortality. However, conventional vaccine development and distribution strategies face several challenges, including the emergence of new variants, antigenic evolution, vaccine hesitancy, unequal access to vaccines, cold-chain requirements, and limited preparedness for newly emerging pathogens.                                                                                                                                                                                                                               Advances in mRNA vaccines, viral-vector platforms, recombinant vaccines, nanoparticle-based delivery systems, and next-generation vaccine technologies are creating new opportunities for rapid and adaptable disease prevention. This presentation will provide a global perspective on the epidemiology and drivers of emerging infectious diseases, with particular emphasis on zoonotic diseases, vector-borne infections, antimicrobial-resistant pathogens, and newly emerging viral threats. It will further discuss recent developments in vaccine technology, novel vaccine delivery approaches, immunization strategies, and the role of genomic surveillance and artificial intelligence in outbreak prediction and pathogen monitoring. The importance of the One Health approach, integrating human, animal, and environmental health, will also be highlighted.                                                                                                                                                                                                                                                                                                                                                       Finally, the presentation will explore integrated prevention and preparedness strategies, including strengthening public-health infrastructure, improving global vaccine equity, enhancing surveillance systems, promoting antimicrobial stewardship, and developing rapid-response mechanisms. A coordinated multidisciplinary and international approach will be essential for building resilient health systems and minimizing the impact of future infectious disease outbreaks.                                                                   Keywords: Emerging infectious diseases; Vaccines; Pandemic preparedness; Global health; One Health; Disease prevention; Vaccine innovation; Antimicrobial resistance