As many colleges and universities welcome students back to campus for the fall, some have seen big outbreaks of COVID-19. While several have blamed the outbreaks on students who violate social-distancing guidelines, others are deploying students to help enforce the rules.

Three colleges demonstrate how they are using "student ambassadors" as an opportunity to educate classmates and potentially keep campuses open for the remainder of the semester. 

When Red Rocks Community College moved online in the spring because of the pandemic, Guadalupe Cordova's normally good grades plunged.

Cut off from family and many of her friends, Cordova missed the support she needed to cope with her stress. She spiraled into depression and on some days struggled to get out of bed. She ultimately opted to defer her college dream this fall. And that decision could very well haunt her for years to come.