Commentary
COVID-19 represents the first time in the history of pandemics that we confined healthy populations. While the ancients did not understand the mechanisms of infectious disease—they knew nothing of viruses and bacteria—they nevertheless figured out many ways to mitigate the spread of contagion during epidemics. These time-tested measures ranged from quarantining symptomatic patients to enlisting those with natural immunity, who had recovered from the illness, to care for the sick.
