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

作者：Lawson Lovett^*; Zhang Jian; Gomgnimbou Michel K; Abdurrahman Saddiq T; Le Moullec Stephanie; Mohamed Fatima; Uzoewulu Gertrude N; Sogaolu Olumide M; Goh Khye Seng; Emenyonu Nnamdi; Refregier Guislaine; Cuevas Luis E; Sola Christophe

来源：PLos One, 2012, 7(6): e38409.

DOI：10.1371/journal.pone.0038409

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. %26lt;br%26gt;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 %26quot;modern%26apos;%26apos; 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.

• 出版日期2012-6-18