One of them is a 25-year-old nurse from Wisconsin. Becca Clifford is making the 14-hour drive on Sunday to New Jersey.
Clifford says it is more than a job for her, it is a mission to save lives.
"It's what I need to do - go out there. I have the ability to help others, and they need help right now. They are in a full-blown crisis out there," Clifford said.
Clifford will work at Hackensack Meridian Rehab Center, which has been turned into a makeshift hospital.
MORE CORONAVIRUS COVID-19 COVERAGE
Where are the testing centers
See how our communities are making a difference
Free educational resources for parents and children
How you can help victims of coronavirus
Coronavirus news and live updates in New York
Coronavirus news and live updates in New Jersey
Coronavirus news and live updates in Connecticut
New York City updates
Long Island updates
How coronavirus is leaving ghost towns in its path
Coronavirus prevention: how clean are your hands?
Social distancing: What is it and how does it stop the spread of coronavirus?
Coronavirus closures and cancelations
Coronavirus tips: What Americans need to know
Centers for Disease Control and Prevention on coronavirus
Coronavirus cases by county