Case Investigation and Contact Tracing for COVID-19 in the Era of Vaccines: Innovative Strategies in the US

Rendering of the 2019-nCoV virion. Dan Higgins, MAM/CDC/REUTERS

Over the coming months, as cases decrease, the risk of variants persists, and substantial new federal dollars become available, case investigation and contact tracing (CI/CT) are likely to become increasingly important. This phase of the pandemic response provides a unique opportunity to evaluate the strengths of existing CI/ CT programs and retool interventions in light of vaccines, new variants, expanded testing capacities, and lessons learned over the past year.