Clinical evaluation of household and close contacts for active TB should be done on the basis of their risk for having or developing active TB or for the potential consequences of the disease if it develops. Priority should be given to contacts who are:

• children with symptoms suggestive of TB;
• children <5 years of age;
• children with known or suspected immunocompromising conditions (especially those living with HIV); and
• child contacts of index cases with multidrug-resistant or extensively

drug-resistant TB (proven or suspected)