Global Infectious Disease Trends: 30 Years of Progress, Challenges & Emerging Threats Introduction: How Infectious Diseases Have Shifted Over Three Decades Over the past 20–30 years, the global burden of infectious diseases has changed dramatically. Once the dominant cause of death worldwide, infectious diseases have declined in relative importance due to vaccines, improved treatments, and coordinated global health programs. Yet they remain a major threat … Continue reading Global Infectious Disease Trends: 30 Years of Progress, Challenges & Emerging Threats