Earlier this fall, Occidental College junior Luigi Maruani laid in bed anxious and angry, swiping through his phone. His 75-year-old father had just contracted the coronavirus, and Maruani felt the federal government wasn’t responding to the pandemic with enough urgency. A post in a Facebook group for students living off-campus caught his eye. “We’ve heard some rumblings and want to be clear about infections within our small community,” senior Avani Johnson wrote. “If you end up testing positi...