Fig. 2

Plot showing the number of TB diagnostic tests performed weekly between May 2017 and September 2018 (represented by circles). Week 1 represents the first week of May 2017 and week 74 represents the last week of September 2018; the intervention started at week 56 and is represented by the grey shading. The solid red line represents the monthly trend in observed number of TB diagnostic tests, the dotted red line shows the expected number of TB diagnostic tests during the study period if the background, pre-study trend continued