Submitted: 01 Jan 2014
Revision: 30 Jan 2014
Accepted: 09 Mar 2014
ePublished: 28 Apr 2014
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Avicenna J Clin Microbiol Infect. 2014;1(1): 19214.
doi: 10.17795/ajcmi-19214
  Abstract View: 866
  PDF Download: 409

Research Article

Prevalence of Tuberculosis Infection Among Health-Care Workers in Hamadan, West of Iran

Seyyed Hamid Hashemi 1*, Mojgan Mamani 1, Nargess Alizadeh 1, Mansour Nazari 1, Iraj Sedighi 2

1 Department of Infectious Diseases, Hamadan University of Medical Sciences, Hamadan, IR Iran
2 Department of Pediatrics, Hamadan University of Medical Sciences, Hamadan, IR Iran
*Corresponding Author: Corresponding author: Seyyed Hamid Hashemi, Department of Infectious Diseases, Hamadan University of Medical Sciences, Hamadan, IR Iran. Tel: +98-9181113258, Fax: +98- 8118269808,, Email: shahashemi@yahoo.com


Background: The risk of occupationally acquired tuberculosis (TB) remains a concern, even now that the infection has been under control to a great extent.

Objectives: The aim of this study was to ascertain the prevalence of latent TB infection and pulmonary TB, and to assess the risk factors for TB, among health care workers in Hamadan.

Patients and Methods: Tuberculin skin test was performed on 245 health care workers, in two educational hospitals. The reaction was considered as "positive" if the induration diameter was ≥ 10 mm. Individuals with a positive test > than 15 mm were encouraged to seek further medical evaluation, including a chest-x-ray and a smear and sputum culture of the sputum for acid-fast bacilli, in those with radiographic changes indicating TB.

Results: Out of 245 health-care workers included in this study, 92 (38%) had positive tuberculin test. There was a significant association between aging and tuberculin positivity. There was also a significant association between the length of employment and tuberculin positivity. Ward attendants had higher rates of positive test results, compared with other occupational groups.

Conclusions: It was concluded that latent TB infection is common among health-care workers in the studied region. Age, occupational group and employment length were found to be strongly associated with tuberculin positivity.

Implication for health policy/practice/research/medical education: Due to the high potential risk of acquiring TB for HCWs in the region under study, additional infection-control measures are necessary to reduce the possibility of transmission in hospitals. Copyright © 2014, Hamadan University of Medical Sciences; Published by Safnek. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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