WHO’s 2015 End Tuberculosis Strategy can succeed only through universal health coverage, social protection, poverty alleviation and effective multisector actions to tackle social determinants in general. The pediatric age group is particularly vulnerable to tuberculosis and historically neglected worldwide. However, this group is a priority within Cuba’s National Tuberculosis Control Program that has functioned since 1970, and Cuba is considered a low-incidence country with rates <7 per 100,000 population since 2011. Tuberculosis incidence in children aged <15 years is <1 per 100,000, similar to that reported in high-income countries and representing less than 2% of total cases in Cuba. Since 1999, no deaths from tuberculosis, coinfection with HIV or resistance to the two first-line TB drugs have been reported in affected children, and most diagnosed cases correspond to early, primary forms of the disease. These results place Cuba among the countries on track to eliminate TB by 2050. This article reviews the pillars and components of the 2015 End TB Strategy and the strategies developed by the National Tuberculosis Control Program that enabled Cuba to bring incidence below the 2035 targets of WHO’s End TB strategy. The article also proposes other actions Cuba can take, despite limited resources, to eliminate TB, particularly in the pediatric age group.

KEYWORDS Tuberculosis, communicable disease control, disease control programs, preventive health services, child health, World Health Organization, Cuba

INTRODUCTION Following a tripling of tuberculosis incidence in Cuba between 1991 and 1994 (from 4.7 to 14.7 per 100,000), the National TB Control Program was revamped in 1995 and the National Reference Center for Childhood TB and Provincial Childhood TB Commissions were created as a strategy for addressing this emerging health problem.

OBJECTIVE Assess the impact of Cuba’s new strategy for TB control in children aged <15 years during the period 1995–2005.

METHODS A descriptive review of health services and systems was conducted in Cuba, examining 157 cases of TB diagnosed in children aged <15 years during the period 1995–2005 and comparing impact and process indicators for selected years (1995, 2000, and 2005). Impact indicators included reduction in: a) incidence; b) serious forms (peritoneal, meningeal, miliary, combined); c) mortality; and d) case outcomes (cure, death, treatment drop-out, treatment failure). Process indicators were proportion of cases with: a) microbiological tests; b) knowledge of infection source; c) diagnoses obtained through adult case contact tracing; d) time to diagnosis <60 days; and e) post-mortem diagnoses.

RESULTS During the period 1995–2005, TB rates in children aged <15 years fell by 50% (from 1.0 to 0.5 per 100,000), more evident in children <10 years. The Havana rate was three times the national rate. Diagnosis was post-mortem in three serious cases (1.9%); there were four deaths (2.5%), none after 2000. Only seven children (4.5%) had serious forms, none after 2002. Except for cases diagnosed post-mortem, all children received treatment directly supervised by health personnel. Cure rate was 99.4%; there were no treatment drop-outs or chronic cases; one relapse was reported (0.6%). Knowledge of infection source increased to 90% over the selected years. Microbiological tests were conducted in 90% of cases, with isolation in 30.9%. No isolate was drug‑resistant, nor were there reports of infectious contacts with resistance. We found no HIV coinfection. At the end of the study, time to diagnosis of ≥60 days persisted in 40% of cases.

CONCLUSIONS Creation of a National Reference Center for Childhood TB and Provincial Childhood TB Commissions has contributed to improved TB diagnosis and control in children aged <15 years, achieving incidence similar to that during the period prior to TB re-emergence and to those of some developed countries. Improvements are needed in the work and systematic training of health personnel, especially at the primary health care level, in order to eliminate TB as a national health problem by 2015.

KEYWORDS Tuberculosis, tuberculosis/diagnosis, tuberculosis/epidemiology, tuberculosis/mortality, tuberculosis/prevention and control, tuberculosis/therapy, child health services, Cuba