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Drug Resistant Mycobacterium tuberculosis in Tertiary Hospital South East, Nigeria | OMICS International | Abstract
ISSN: 2161-0703

Journal of Medical Microbiology & Diagnosis
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Research Article

Drug Resistant Mycobacterium tuberculosis in Tertiary Hospital South East, Nigeria

Uzoewulu NG1*, Ibeh IN2, Lawson L2, Goyal M3, Umenyonu N3, Ofiaeli RO4 and Okonkwo R5

1Nnamdi Azikiwe University Teaching Hospital Nnewi, Nigeria

2University of Hertfortshire Hatfield, UK

3University of Benin, Nigeria

4Nnamdi Azikiwe University Teaching Hospital, Nnewi, Nigeria

5Zankli Medical centre, Abuja, Nigeria

*Corresponding Author:
Uzoewulu Ngozi Gertrude
Department of Medical Microbiology
Nnamdi Azikiwe University Teaching Hospital Nnewi
Anambra State, Nigeria
Tel: +234 806 049 2273l
E-mail: [email protected]

Received Date: February 11, 2014; Accepted Date: June 27, 2014; Published Date: June 29, 2014

Citation: Uzoewulu NG, Ibeh IN, Lawson L, Goyal M, Umenyonu N, et al. (2014) Drug Resistant Mycobacterium tuberculosis in Tertiary Hospital South East, Nigeria. J Med Microb Diagn 3:141. doi: 10.4172/2161-0703.1000141

Copyright: © 2014 Uzoewulu NG, et al. 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 author and source are credited.


Objective: Drug resistant Mycobacterium tuberculosis is a public health threat globally. We described the drug resistance pattern of M. tuberculosis to first line anti-TB drugs and the prevalence of Multidrug resistant TB among TB patients at tertiary hospital Nnewi, Nigeria.

Methods: Sputum specimens from 550 suspected TB patients were analyzed for AFB. The smear positive samples were subjected to culture and drug susceptibility testing to first line anti-TB drugs on Lowenstein-Jensen medium.

Result: Out of 180 (32.7%) culture positive samples subjected to DST, 97 (53.8%) were susceptible to all first line anti-TB drugs while 83 (46.1%) were resistant to one or two anti- TB drugs. The level of resistance was significant at p<0.05 identifying three patterns, Mono-drug resistance in 34(18.8%) patients, Multi-drug resistance in 14 (7.7%) and Poly drug resistance in 35 (19.4%) patients. The proportion of TB cases with resistance to single drugs ranged from 5 (2.7%) for rifampicin to 12 (6.6%) for isoniazid and previously treated TB 8 (4.4%) patients was a significant factor (P<0.000) to development of MDR-TB compared to new TB patients 6(3.3%) within the age range of 21-40 years. Other factors such as age, gender and HIV positive status were not significantly associated with the development of any resistance.

Conclusion: The investigation highlights the presence of drug resistant TB with high prevalence of MDR-TB in the studied community. Larger studies are urgently recommended to improve TB clinical management and control efforts.


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