The CDC is advising overwhelmed local health officials to triage their coronavirus contact tracing efforts, writing that the latest infection surge is making it difficult to reach every close contact of Covid-positive patients in time to help contain the disease’s spread. “As the burden of COVID-19 worsens in an area, and the capacity to investigate new cases in a timely manner becomes more difficult or is not feasible, health departments should prioritize which cases to investigate and which contacts to trace,” reads new guidance from the CDC.