Washington University in St. Louis Mar 9 2026 Infectious disease can afflict a population in complex ways. Understanding the varying risks is an equally complex challenge. The Centers for Disease Control and Prevention (CDC) offers a general metric for assessing the risk of natural disasters in a region in terms of Social Vulnerability Index (SVI), which includes socioeconomic and cultural factors that impact how a region can adapt to a disaster. Researchers at Washington University in St.