TY - JOUR T1 - Contact tracing among the classmates of a 15 year old smear negative pulmonary tuberculosis JF - European Respiratory Journal JO - Eur Respir J VL - 38 IS - Suppl 55 SP - p4979 AU - Nooshin Baghaie AU - Soheila Khalilzadeh AU - Mohammad Reza Boloorsaz AU - Nazanin Parsanejad Y1 - 2011/09/01 UR - http://erj.ersjournals.com/content/38/Suppl_55/p4979.abstract N2 - Objectives: This study aimed to identify the infected or disease cases among contacts of the 15 year old girl with Smear Negative Pulmonary tuberculosis in an school outbreak and establish prophylaxis and treatment needed.Methods: 52 contacts were screened by a tuberculin skin test and Chest X ray initially, Those children who had either a positive PPD or an abnormal chest X-ray were candidate for a tripled Gastric washing (Smear, Culture, Polymerase chain reaction (PCR)) and a Chest spiral CT scan.Results: 20 contacts (38%) were considered as an infected due to either positive TST or abnormal Chest X-Ray. 28% had a positive Tuberculin Skin Test. Consequently 3 (5.7%) cases of active TB were identified through our investigations.Conclusion: Our study suggest that even children with TB, who may have a negative smear, can transmit infection to others and therefore should be considered infectious until proven otherwise and contact tracing should be considered for contacts of all symptomatic pulmonary tuberculosis children. ER -