A Transportation Security Administration employee waits for travelers to approach her security checkpoint, Saturday, March 14, 2020, at jetBlue's John F. Kennedy international airport in New York. Millions of waiters, delivery workers, cashiers, ride-hailing drivers, museum attendants and countless others routinely come into contact with the public. Their dilemma is often compounded by spotty sick leave policies or inadequate health insurance coverage, leaving them vulnerable to the fast-spreading coronavirus. (AP Photo/Kathy Willens), APTOPIX