So to be honest, I think it will definitely affect the campus job situation, although just temporarily. With campuses being shut down and classes being online, the general campus jobs won't be functioning a whole lot either. But this is a temporary and very important step that everyone is taking of self-quarantining and maintaining safe distance. In such a fluid situation, I would just advice you to stay strong and keep applying and looking for the campus jobs as they will definitely need new students to fill up for jobs.
They might have new policies etc. because of increased hygiene/sanitary precautions we all have to take, but that will surely not hamper job prospects.