Last March, Johan (Joop) C. Varekamp, Harold T. Stearns Professor of Earth Science, intended to teach an ore deposit and formation class in Italy; however, the COVID-19 pandemic caused him to stay near campus. Nevertheless, Varekamp kept a keen watch on Italy. With a fascination with the pandemic's wildfire spread, Varekamp began plotting coronavirus data from both the United States and Italy to see how their growth curves compared. "Infectious diseases follow initially exponential growth patterns until measures are taken to limit transmission or a vaccine becomes available," Varekamp said. "I wanted to know how disease propagation compares to population…