Contact tracing can help stem the spread of the COVID-19 pandemic. It involves tracking the movement and interactions of infected individuals to identify others at risk.
National and regional responses to the COVID-19 pandemic have included containment through quarantine and restriction of movement. When properly implemented, these solutions limit spread of the contagion to prevent it from overwhelming healthcare and emergency management systems.
According to the World Health Organization, the Centers for Disease Control and Prevention, and virtually all medical professionals, any effective strategy to return the world to normal requires three components: testing, contact tracing and isolation.