Transit Workers Were N.Y.C.’s Pandemic Lifeline. These 3 Paid a Price.

By BY JONAH MARKOWITZ AND CHRISTINA GOLDBAUM from NYT New York
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As train and bus operators served a city under siege, their ranks were battered. Now, as riders trickle back to public transit, workers are alarmed by the prospect of a second wave as they continue to cope with the trauma from the initial outbreak.