Abstract: Objective To understand the health care workers’awareness level of TB infection control knowledge in Inner Mongolia. Methods This is a cross-sectional study. A total of 1345 health care workers in twelve TB institutions and general hospitals were investigated by self-designed questionnaires which include following related knowledge: triage, isolation, disinfection, ventilation, wearing masks and personal protection. 1337 valid questionnaires were collected for analysis, among them 540(40.4%) were from doctors and 797(59.6%) were from nurses.  Results On isolation and ventilation, the proportion of accurate answers by health care workers both reached 99.0% (1324/1337, 1324/1337). However, for the type of mask should be worn when contact with suspected or confirmed TB, and disinfection, the accurate answers were only 22.6 % (302/1337) and 54.3% (726/1337) respectively. The highest proportion of accurate answers by health care workers was about how to wear the masks which was 81.7%(1092/1337).  Conclusion The awareness level of TB infection control knowledge needs to be improved among health care workers in Inner Mongolia. There is a need to strengthen the training of relevant knowledge and skills, with the focus on the content of disinfection and personal protection related mask wearing.

Key words: Tuberculosis/prevention &, control, Disease transmission,professional-to-patient/prevention &, control, Infection control, Health education