Children and Adolescents

TB disease should be excluded in neonates born to women with presumptive or confirmed TB. The level of infectiousness and drug susceptibility in the mother should be determined. It is not necessary to separate the neonate from the mother. Breastfeeding should be continued and the mother advised to wear a surgical mask when close to the baby (191).

In general, TB medicines should be dosed according to body weight. Dosing of bedaquiline and delamanid for children and young adolescents aged under 15 years was updated in 2021 following an expert consultation meeting convened by WHO. These dosing recommendations are included in Annex 6 and may be updated as evidence emerges, especially for the youngest age groups, for which there is very limited evidence.

Based on modelling estimates, between 25 000 and 32 000 children and young adolescents aged under 15 years develop MDR-TB disease annually (110). When treated, outcomes of children with MDR/RR-TB are good, with favourable outcomes in 78% (111) and over 90% in some cohorts (112). Despite these good outcomes, relatively few children are diagnosed and treated for MDR/RR-TB each year, with only 12 220 starting treatment between 2018 and 2020 (11% of the United Nations General Assembly High-level Meeting target of 115 000) (1, 9).

About a quarter of the world’s population has been infected with Mycobacterium tuberculosis. The vast majority of these people do not have TB disease (10). It is estimated that 7.5 million children and young adolescents aged under 15 years are newly infected with M. tuberculosis each year (11). Cumulatively, about 67 million children and young adolescents aged under 15 years are infected with M.

TB is a common cause or comorbidity in children with clinically diagnosed pneumonia. A systematic review on TB in acute respiratory infection found that M. tuberculosis was identified in around 5–10% of children with pneumonia aged under 5 years in TB endemic countries (223). Limited data from clinical and autopsy studies suggest that TB was also associated with mortality in these children. Prevalence studies, including the multisite PERCH study (224), confirm these findings.

In 2014, World Health Assembly Resolution WHA67.19 called upon WHO and Member States to improve access to palliative care as a core component of health systems, with an emphasis on PHC and community- and home-based care (197). WHO is supporting integration of palliative care into all relevant global disease control and health system plans and is promoting improved access to palliative care for children, in collaboration with the United Nations Children’s Fund.

Routine safety monitoring of treatment should generally follow the recommended approach in adults and should be guided by the known adverse effect profile of the medicines included in the regimen.

Table 5.14 summarizes the most common adverse effects of the medicines used for MDR/RR-TB.

This section covers the standardized shorter all-oral bedaquiline-containing regimen and individualized regimens for children and adolescents not eligible for the shorter all-oral bedaquiline-containing regimen. It also includes other important considerations, including treatment of EPTB and TB/HIV coinfection, and dosing and formulations.

Sensitivity for TB of “any abnormality” as reported on CXR in close contacts aged under 15 years is 84%, and specificity is 91% (25). It is thus more specific than symptom screening alone. Estimates of the accuracy of CXR are not disaggregated by age group, and significant differences in CXR findings between younger and older children may lead to important differences in sensitivity and specificity by age group.

TB contact investigation can be implemented at the health care facility or at the community level, or as a combination. This section contains some examples of approaches to contact investigation, including lessons learnt.