Contact Tracing and Investigation

Contact tracing is a process to identify people who are  at a high risk of developing TB due to their contact with a known TB case.

The aim of contact tracing is to find other people with TB disease and those infected with TB

All close contact persons, especially household contact persons of a Pulmonary TB patient, should be screened for TB. 

In paediatric TB patients, reverse contact tracing for the search of any active TB case in the child's household must be undertaken.

Particular attention should be paid to contacts with the highest susceptibility to TB infection.

Figure: Contacts to be Prioritized for contact TB screening