Funding for this research was provided by:
China-Gates Foundation TB Project (OPP1137180)
Received: 10 November 2020
Accepted: 5 March 2021
First Online: 17 March 2021
: The ethics committee of the China CDC (number 201910, dated 18 April 2019) and the Ethics Advisory Group of the International Union Against Tuberculosis and Lung Disease (The Union), Paris, France (EAG No 32/19, dated 19 March 2019), approved the study. As the study involved use of secondary programme data, we sought a waiver for informed consent and this was approved by the ethics committees.
: Not applicable.
: The authors declare that they have no competing interests. The contents of this paper do not necessarily reflect the views of the government or nongovernmental organizations or The Union.