Allen was thrilled when she was able to book an appointment for the one-dose Johnson & Johnson vaccine at the Javits Center on March 10. The sprawling convention space had just received new shipments of vaccine and was jabbing New Yorkers around the clock — Allen’s appointment was at 2 a.m. As a wine and spirits distributor, she was able to get a coveted early spot even while vaccines remained unavailable to most New Yorkers. Though she experienced a brief fever the next day, her side effects from the jab quickly resolved. Even after Allen was vaccinated, she was careful...