1. Is the development of a new tuberculosis vaccine possible?;SH Kaufmann;Nat Med,2000
2. WHO (2011) Global tuberculosis control: WHO report 2011.
3. Secretaria de Vigilância em Saúde – Ministério da Saúde, Brasil (2012) Boletim Epidemiológico. Especial Tuberculose. Available:http://portal.saude.gov.br/portal/arquivos/pdf/bolepi_v43_especial_tb_correto.pdf. Accessed 2012 May 02.
4. Connell DW, Berry M, Cooke G, Kon OM (2011) Update on tuberculosis.
5. Enzyme-linked Immunospot and Tuberculin Skin Testing to Detect Latent Tuberculosis Infection;H Shams;Am J Respir Crit Care Med,2005