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Efficient discrimination by MIRU-VNTRs of Mycobacterium tuberculosis clinical isolates belonging to the predominant SIT11/EAI3-IND ancestral genotypic lineage in Kerala, India
oleh: Biljo V Joseph, Smitha Soman, Véronique Hill, R Ajay Kumar, Nalin Rastogi, Sathish Mundayoor
Format: | Article |
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Diterbitkan: | Wolters Kluwer Medknow Publications 2013-01-01 |
Deskripsi
The present study evaluated the ability of MIRU–VNTRs to discriminate Mycobacterium tuberculosis (MTB) clinical isolates belonging to the SIT11/EAI3-IND ancestral genotypic lineage, which is highly prevalent in Kerala, India. Starting from 168 MTB clinical isolates, spoligotyping (discriminatory index of 0.9113) differentiated the strains into 68 distinct patterns, the biggest cluster being SIT11/48 SIT11 (n = 48). The present study shows that 12-loci MIRUs and 3 ETRs allowed an efficient discrimination of these isolates (discriminatory indexes of 0.7819 and 0.5523, respectively).