When the Hualapai tribe imposed a stay-at-home order and closed its Skywalk, the horseshoe-shaped, glass-bottomed walkway that extends over the south rim of the Grand Canyon, last month, it gave its members an added layer of protection against the raging coronavirus.īut it also deprived them of their primary source of revenue. This is part of our Coronavirus Update series in which Harvard specialists in epidemiology, infectious disease, economics, politics, and other disciplines offer insights into what the latest developments in the COVID-19 outbreak may bring.