Test and contact tracing: two wings to get rid of COVID-19 pandemic, until we get the vaccine

In tracing a positive person for COVID-19, we are more likely to come across one of these scenarios: a party, a gathering, a restaurant, a flight, and so on. By tracing people and identifying these critical transmission points, we can do active testing for COVID-19 RT-PCR, recommend the self-isolation or quarantine to all individuals at the gathering, or improve the ill-structured places they had contacted, to prevent these spread multipliers and their associated costs. According to the Washington D.C