Contagion is an online intercollegiate quiz that challenges students to explore the fascinating world of infectious diseases. From viruses and bacteria to outbreaks, diagnostics, and global health, the quiz tests knowledge, logic, and rapid thinking across all domains of microbiology and medicine. Designed to engage curious minds and competitive spirits alike, Contagion brings together teams from across institutions to compete, learn, and think critically—where the tiniest things test the biggest brains.