1. World Health Organization. Global tuberculosis report 2018. Geneva: The organization; 2018. WHO/CDS/TB/2018.20. Available at:
https://www.who.int/tb/publications/global_report/en/
2. World Health Organization. Guidance for national tuberculosis programmes on the management of tuberculosis in children. Geneva: The Organization; 2006. p. 49. (WHO/HTM/ TB/2006.371; WHO/FCH/CAH/2006.7). Available at:
https://www.popline.org/node/181737
3. World Health Organization. Global tuberculosis report 2012. Geneva: The Organization; 2012. WHO/HTM/TB/2012.6. Available at:
https://www.who.int/tb/publications/global_report/gtbr12_main.pdf
.
4. Wallgren AJ. On the contagiousness of childhood tuberculosis. Acta Paediatr Scand. 1937;22:229–34.
5. Marais BJ, Gie RP, Schaaf HS, et al. The clinical epidemiology of childhood pulmonary tuberculosis: a critical review of literature from the pre-chemotherapy era. Int J Tuberc Lung Dis. 2004;8(3):278–85.