Upper-room germicidal ultraviolet (GUV)
systems 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