DETROIT (AP) — A fleet of medical students has been vital in Detroit's response to the coronavirus and COVID-19.

Wearing gowns and face shields, the students are spending hours swabbing people and running tests.

The results determine whether key Detroit personnel, like police and firefighters, can work or must stay home to recover.

John Zervos of Henry Ford Health System says he recruited roughly 80 students from medical schools at Wayne State University, the University of Michigan and Michigan State University.

Lucia Luna-Wong is a fourth-year medical student at Wayne State. She says the coronavirus is a "crash course in public health."