1. Latent tuberculosis infection: updated and consolidated guidelines for programmatic management (2018) Geneva: World Health Organization
2. Cohen A, Mathiasen VD, Schön T, Wejse C (2019) The global prevalence of latent tuberculosis: a systematic review and meta-analysis. Eur Respir J 54(3):1900655
3. World Health Organisation End TB Strategy: Global strategy and targets for tuberculosis prevention, care and control after 2015
4. HSE Health Protection Surveillance Centre (2019) Annual Epidemiological Report for Tuberculosis 2018
5. Scaling up programmatic management of LTBI,a critical action to achieve the WHO End TB Strategy targets, Latent Tuberculosis Infection Factsheet November 2015, World Health Organisation