PMID- 31498808 OWN - NLM STAT- MEDLINE DCOM- 20200306 LR - 20210110 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 14 IP - 9 DP - 2019 TI - Genetic variability and consequence of Mycobacterium tuberculosis lineage 3 in Kampala-Uganda. PG - e0221644 LID - 10.1371/journal.pone.0221644 [doi] LID - e0221644 AB - BACKGROUND: Limited data existed exclusively describing Mycobacterium tuberculosis lineage 3 (MTB-L3), sub-lineages, and clinical manifestations in Kampala, Uganda. This study sought to elucidate the circulating MTB-L3 sub-lineages and their corresponding clinical phenotypes. METHOD: A total of 141 M. tuberculosis isolates were identified as M. tuberculosis lineage 3 using Single nucleotide polymorphism (SNP) marker analysis method. To ascertain the sub-lineages/sub-strains within the M. tuberculosis lineage 3, the direct repeat (DR) loci for all the isolates was examined for sub-lineage specific signatures as described in the SITVIT2 database. The infecting sub-strains were matched with patients' clinical and demographic characteristics to identify any possible association. RESULT: The data showed 3 sub-lineages circulating with CAS 1 Delhi accounting for 55% (77/141), followed by CAS 1-Kili 16% (22/141) and CAS 2/CAS 8% (12/141). Remaining isolates 21% (30/141) were unclassifiable. To explore whether the sub-lineages differ in their ability to cause increased severe disease, we used extent of lung involvement as a proxy for severe disease. Multivariable analysis showed no association between M. tuberculosis lineage 3 sub-lineages with severe disease. The risk factors associated with severe disease include having a positive smear (OR = 9.384; CI 95% = 2.603-33.835), HIV (OR = 0.316; CI 95% = 0.114-0.876), lymphadenitis (OR = 0. 171; CI 95% = 0.034-0.856) and a BCG scar (OR = 0.295; CI 95% = 0.102-0.854). CONCLUSION: In Kampala, Uganda, there are three sub-lineages of M. tuberculosis lineage 3 that cause disease of comparable severity with CAS-Dehli as the most prevalent. Having HIV, lymphadenitis, a BCG scar and a smear negative status is associated with reduced severe disease. FAU - Wampande, Eddie M AU - Wampande EM AUID- ORCID: 0000-0003-0012-8883 AD - Department of Medical Microbiology, College of Health Sciences, Makerere University, Kampala, Uganda. AD - Department of Veterinary Medicine, Clinical and Comparative medicine, College of Veterinary Medicine, Animal Resources and Bio Security, Makerere University, Kampala, Uganda. FAU - Naniima, Peter AU - Naniima P AD - Department of Medical Microbiology, College of Health Sciences, Makerere University, Kampala, Uganda. FAU - Mupere, Ezekiel AU - Mupere E AD - Department of Pediatrics and Child Health College of Health Sciences, Makerere University, Kampala, Uganda. FAU - Kateete, David P AU - Kateete DP AD - Department of Medical Microbiology, College of Health Sciences, Makerere University, Kampala, Uganda. FAU - Malone, LaShaunda L AU - Malone LL AD - Uganda-Case Western Reserve University Research Collaboration, Kampala, Uganda. AD - Tuberculosis Research Unit, School of Medicine, Case Western Reserve University and University Hospitals of Cleveland, Cleveland, OH, Uinted States of America. FAU - Stein, Catherine M AU - Stein CM AD - Tuberculosis Research Unit, School of Medicine, Case Western Reserve University and University Hospitals of Cleveland, Cleveland, OH, Uinted States of America. AD - Department of Population and Quantitative Health Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH, Uinted States of America. FAU - Mayanja-Kizza, Harriet AU - Mayanja-Kizza H AD - Uganda-Case Western Reserve University Research Collaboration, Kampala, Uganda. FAU - Gagneux, Sebastien AU - Gagneux S AD - Swiss Tropical and Public Health Institute, Basel, Switzerland. AD - University of Basel, Basel, Switzerland. FAU - Boom, W Henry AU - Boom WH AD - Tuberculosis Research Unit, School of Medicine, Case Western Reserve University and University Hospitals of Cleveland, Cleveland, OH, Uinted States of America. FAU - Joloba, Moses L AU - Joloba ML AD - Department of Medical Microbiology, College of Health Sciences, Makerere University, Kampala, Uganda. LA - eng GR - N01 AI070022/AI/NIAID NIH HHS/United States GR - N01AI70022/AI/NIAID NIH HHS/United States GR - 107742/Z/15/Z/WT_/Wellcome Trust/United Kingdom GR - R01 AI075637/AI/NIAID NIH HHS/United States GR - WT_/Wellcome Trust/United Kingdom GR - N01AI95383/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20190909 PL - United States TA - PLoS One JT - PloS one JID - 101285081 SB - IM MH - Adult MH - *Genetic Variation MH - Genotype MH - Humans MH - Multivariate Analysis MH - Mycobacterium tuberculosis/*genetics/*physiology MH - Phenotype MH - Risk Factors MH - Tuberculosis, Pulmonary/microbiology MH - Uganda PMC - PMC6733460 COIS- The authors have declared that no competing interests exist. EDAT- 2019/09/10 06:00 MHDA- 2020/03/07 06:00 PMCR- 2019/09/09 CRDT- 2019/09/10 06:00 PHST- 2019/01/30 00:00 [received] PHST- 2019/08/12 00:00 [accepted] PHST- 2019/09/10 06:00 [entrez] PHST- 2019/09/10 06:00 [pubmed] PHST- 2020/03/07 06:00 [medline] PHST- 2019/09/09 00:00 [pmc-release] AID - PONE-D-19-02953 [pii] AID - 10.1371/journal.pone.0221644 [doi] PST - epublish SO - PLoS One. 2019 Sep 9;14(9):e0221644. doi: 10.1371/journal.pone.0221644. eCollection 2019.