What is Contact Tracing?
Contact tracing is the process of identifying, notifying, and monitoring anyone who came in close contact with an individual who tested positive for COVID-19 while they were infectious (2 days before onset of symptoms until the end of the person's isolation period). Contact tracing is a key strategy for preventing the further spread of infectious diseases, such as COVID-19. Close contacts of a case are considered to have been exposed to COVID-19, and may go on to develop the disease. Identifying and quarantining close contacts limits their ability to spread disease should they become infectious and helps to limit community spread.