Ventilation systems (including natural, mixed-mode,
mechanical ventilation, and recirculated air through
high-efficiency particulate air [HEPA] filters) are
recommended to reduce M. tuberculosis transmission to
health workers, persons attending health care facilities or
other persons in settings with a high risk of transmission.
Guideline Citation
WHO guidelines on tuberculosis infection prevention and control, 2019 update, Geneva: World Health Organization; 2019.
Grade Certainty of evidence
Grade Strength
Grade Certainty of evidence label
Recommendation Direction