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A Molecular Epidemiological and Genetic Diversity Study of Tuberculosis in Ibadan, Nnewi and Abuja, Nigeria

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Lawson, Lovett, Zhang, Jian, Gomgnimbou, Michel K., Abdurrahman, Saddiq T., Le Moullec, Stéphanie, Mohamed, Fatima, Uzoewulu, Gertrude N., Sogaolu, Olumide M., Goh, Khye Seng, Emenyonu, Nnamdi, Refrégier, Guislaine, Cuevas, Luis ORCID: https://orcid.org/0000-0002-6581-0587 and Sola, Christophe (2012) 'A Molecular Epidemiological and Genetic Diversity Study of Tuberculosis in Ibadan, Nnewi and Abuja, Nigeria'. PLoS ONE, Vol 7, Issue 6, e38409.

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Abstract

Background

Nigeria has the tenth highest burden of tuberculosis (TB) among the 22 TB high-burden countries in the world. This study describes the biodiversity and epidemiology of drug-susceptible and drug-resistant TB in Ibadan, Nnewi and Abuja, using 409 DNAs extracted from culture positive TB isolates.

Methodology/Principal Findings

DNAs extracted from clinical isolates of Mycobacterium tuberculosis complex were studied by spoligotyping and 24 VNTR typing. The Cameroon clade (CAM) was predominant followed by the M. africanum (West African 1) and T (mainly T2) clades. By using a smooth definition of clusters, 32 likely epi-linked clusters related to the Cameroon genotype family and 15 likely epi-linked clusters related to other “modern” genotypes were detected. Eight clusters concerned M. africanum West African 1. The recent transmission rate of TB was 38%. This large study shows that the recent transmission of TB in Nigeria is high, without major regional differences, with MDR-TB clusters. Improvement in the TB control programme is imperative to address the TB control problem in Nigeria.

Item Type: Article
Subjects: QU Biochemistry > Genetics > QU 470 Genetic structures
QW Microbiology and Immunology > QW 45 Microbial drug resistance. General or not elsewhere classified.
WA Public Health > Health Problems of Special Population Groups > WA 395 Health in developing countries
WF Respiratory System > Tuberculosis > WF 200 Tuberculosis (General)
WF Respiratory System > Tuberculosis > WF 205 Epidemiology
WF Respiratory System > Tuberculosis > WF 360 Drug therapy
Faculty: Department: Groups (2002 - 2012) > Clinical Group
Digital Object Identifer (DOI): https://doi.org/10.1371/journal.pone.0038409
Depositing User: Lynn Roberts-Maloney
Date Deposited: 20 Jan 2015 11:30
Last Modified: 06 Feb 2018 13:08
URI: http://archive.lstmed.ac.uk/id/eprint/4770

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