WHO_HTM_TB_2013_04_6

In settings where the TB prevalence in the general
population is 100/100 000 population or higher, systematic screening for
active TB should be considered among people who are seeking health care or
who are in health care and who belong to selected risk groups.

WHO_HTM_TB_2012_1_7

Tuberculin skin test (TST) is not a requirement for initiating IPT in people living with HIV (strong
recommendation, moderate quality of evidence). People living with HIV who have a positive
TST benefit more from IPT; TST can be used where feasible to identify such individuals.