For Lance Curtis, the journey to receive the COVID-19 vaccine began with a phone call from Los Angeles Christian Health Centers. Doctors and nurses had culled a list of nearly 900 homeless people they wanted to vaccinate. Their outreach workers walked the streets of skid row preaching the gospel of Moderna’s two-shot salvation. And they sought out people in the community’s large shelters to make sure they got pricked. The goal was to offer a lifeline to one of Los Angeles’ most vulnerable and hard-to-reach populations. But the effort to vaccinate the homeless population and the skid row community, which is just getting underway, is fraught with obstacles.