Dr. Neel Gandhi doesn’t call himself a die-hard sports fan, but as an infectious disease expert and associate professor of Epidemiology at the Emory University Rollins School of Public Health, he has found himself monitoring the coronavirus response of the sports world and worries about the practicality of a quarantined restart. “It’s an interesting idea,” Dr. Gandhi says. “In theory, it can be done. But the question ends up being the details of what it means to quarantine these individuals. The key for me would be to truly create a closed community that they’re in.”