Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Latent tuberculosis in nursing professionals of a Brazilian hospital | Severo et al. Journal of Occupational Medicine and Toxicology 2011 6 15 http content 6 1 15 _ JOURNAL OF OCCUPATIONAL MEDICINE AND TOXICOLOGY SHORT REPORT Open Access Latent tuberculosis in nursing professionals of a Brazilian hospital Karen Gisele Person Severo1 Julia da Silva Oliveira1 Marcelo Carneiro2 3 Andréia Rosane de Moura Valim3 4 Eliane Carlosso Krummenauer2 and Lia Gongalves Possuelo3 4 Abstract Tuberculosis TB is considered an occupational disease among health-care workers HCWs . Direct contact with TB patients leads to an increased risk to become latently infected by Mycobacterium tuberculosis. The objective of this study is to estimate the prevalence of latent M. tuberculosis minfection among nursing professionals of a hospital in Rio Grande do Sul Brazil assessed by tuberculin skin test TST . From November 2009 to May 2010 latent M. tuberculosis infection was assessed by TST in 55 nursing professionals. Epidemiological information was collected using a standardized questionnaire. A positive TST result or 10 mm was observed in of the HCWs tested. There was no significant difference in TST positivity when duration of employment or professional category technician or nurse was evaluated. The results of this work reinforce the need for control measures to prevent latent M. tuberculosis infection among nursing professionals at the hospital where the study was conducted. Keywords Tuberculosis Tuberculin Skin Test Health-Care Workers Introduction Tuberculosis TB mainly caused by Mycobacterium tuberculosis is one of the most ancient and neglected diseases of humanity 1 . According to the World Health Organization WHO one third of the world s population around billion people are infected with TB 2 . Health-care workers HCWs present a higher risk of infection compared to the general population. A longer period of employment as health professional patient s delayed diagnosis of the disease professional category certain work locations
