For Audra Williams, intensive care unit (ICU) nursing was her "passion." And for almost eight years, it was her career, leading her to work across four U.S. states including, most recently, New York.

But when the coronavirus pandemic broke out last year, and when New York City turned into the virus' global epicenter at one point, she was faced with a difficult decision: Should she leave behind the job she loves for the sake of her own health?