Indan Journal of Medical Research Indan Journal of Medical Research Indan Journal of Medical Research
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Year : 2011  |  Volume : 133  |  Issue : 6  |  Page : 613-617

Pulmonary tuberculosis among health care workers at two designated DOTS Centers in urban city of Ibadan, Nigeria

1 Department of Medical Microbiology & Parasitology, University College Hospital, Ibadan, Nigeria
2 Department of Medicine, College of Medicine, University College Hospital, Ibadan, Nigeria
3 Government Chest Hospital, Ibadan, Nigeria

Correspondence Address:
A O Kehinde
TB Unit, Department of Medical Microbiology & Parasitology, College of Medicine, University College Hospital, University of Ibadan
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Source of Support: None, Conflict of Interest: None

PMID: 21727659

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Background & objectives: Tuberculosis (TB) infection control interventions are not routinely implemented in many Sub-Saharan African countries including Nigeria. This study was carried out to ascertain the magnitude of occupationally-acquired pulmonary TB (PTB) among health care workers (HCWs) at two designated DOTS centers in Ibadan, Nigeria. Methods: One year descriptive study (January-December 2008) was carried out at the University College Hospital and Jericho Chest Hospital, both located in Ibadan, Nigeria. A pre-tested questionnaire was used to obtain socio-demographic data and other relevant information from the subjects. Three sputum samples were collected from each subject. This was processed using Zeihl-Neelsen (Z-N) stains. One of the sputum was cultured on modified Ogawa egg medium incubated at 37 o C for six weeks. Mycobacterium tuberculosis was confirmed by repeat Z-N staining and biochemical tests. Results: A total of 271 subjects, 117 (43.2%) males and 154 (56.8%) females were studied. Nine (3.3%) had their sputum positive for acid fast bacilli (AFB) while six (2.2%) were positive for culture. The culture contamination rate was 1.8 per cent. Significantly, all the six culture positive samples were from males while none was obtained from their female counterparts. About half of the AFB positive samples were from subjects who have spent five years in their working units. Eight AFB positive cases were from 21-50 yr age group while students accounted for seven AFB positive cases. Interpretation & conclusions: The study shows that occupationally-acquired PTB is real in Ibadan. Further studies are needed to ascertain and address the magnitude of the problem.

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