
Dr. Joia Mukherjee, the chief medical officer at Partners in Health, a global health organization, says contract tracing is an important step to decreasing the number of cases of coronavirus.
"If we want to not only flatten the curve, which we are doing through social isolation, but shrink the curve and make it fewer infections, we have to do contact tracing and isolation," Mukherjee told CNN's John King.
Here's what happens during contact tracing:
- Step one: Investigating close contacts
Mukherjee said once a person tests positive for the virus, there will be a case investigation. This means public health officials call the patient and investigate who their close contacts have been. They will gather a list of everyone who came within 6 feet of the person who tested positive, starting two days before they started having symptoms.
- Step two: Contact tracing team makes calls
That list of contact information then goes to a contact tracing team, Mukherjee said. The team calls each person who meets that definition of "a contact within that 6-foot radius," she said.
She said the contact team would tell them "you have been in contact of someone of COVID. These are the things you need to know. One, are you okay? Are you feeling okay? And if not connecting people rapidly to care, testing."
The team would also determine if the individual was able to self-quarantine, and if not, "we would refer that person to social support," Mukherjee said.
- Step three: Make sure they can isolate properly
The third step to contact tracing is making sure the individual who is quarantining has enough food, housing or sanitation so they can isolate properly and not continue to spread the disease within families.
"We have to address those local contacts to stop transmission of this virus," she said.