OKANA- Greek Organisation AgainstDrugs, 2Aristoteleion University Of Thessaloniki Medical School,

3 Hellenic Anticancer Institute,”Saint Savvas” Hospital, 4 Athens University Medical School Latent TB infection among injection usersin methadone programs in Greece P.Katsaounou, E.Petroulaki, K.Kougianos, M.Gaggadi,G. Politis ATS May2006