ArticleBMC genomics2024
Genetic diversities and drug resistance in Mycobacterium bovis isolates from zoonotic tuberculosis using whole genome sequencing.
Article in BMC genomics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The Burden and Genetic Diversity of Mycobacterium bovis Infection in Humans in the Middle East and North Africa: A Systematic Review and Meta-Analysis.Transboundary and emerging diseases · 2026Pooled it
- Zoonotic Tuberculosis as a One Health Challenge: Global Evidence, Transmission Dynamics, and Policy Gaps in Indonesia.Veterinary sciences · 2026Review
- A Porcine-IsolatedBiology · 2026Article
- Disseminated PrimaryCase reports in infectious diseases · 2026Article
- High-Throughput Sequencing of Nontuberculous Mycobacterial Flora andVeterinary sciences · 2025Article
- Genetic diversity and antibiotic resistance ofFrontiers in cellular and infection microbiology · 2025Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundZoonotic human tuberculosis (TB) caused by Mycobacterium bovis (M. bovis) is as vital as Mycobacterium tuberculosis, however with scarce available information. We aimed to use whole-genome sequencing (WGS) technology to take a deep insight into the circulating genotypes of human M. bovis and the genomic characteristics underlying virulence and drug resistance.
methodsThe study included smear positive Ziehl-Neelsen samples from patients with suspected tuberculosis. Samples were cultured on Lowenstein-Jensen media and suspected colonies of M. bovis were selected to undergo DNA extraction and WGS. Data was analysed using the Bacterial and Viral Bioinformatics Resource Center (BV-BRC), and online bioinformatics tools. A phylogenetic tree was constructed for our sequenced strains, in addition to a set of 59 previously sequenced M. bovis genomes from different hosts and countries.
resultsOut of total 112 mycobacterial positive cultures, five M. bovis were isolated and underwent WGS. All sequenced strains belonged to Mycobacterium tuberculosis var bovis, spoligotype BOV_1; BOV_11. Resistance gene mutations were determined in 100% of strains to pyrazinamide (pncA and rpsA), isoniazid (KatG and ahpC), ethambutol (embB, embC, embR and ubiA), streptomycin (rpsl) and fluoroquinolones (gyrA and gyrB). Rifampin (rpoB and rpoC) and delamanid (fbiC) resistance genes were found in 80% of strains. The major represented virulence classes were the secretion system, cell surface components and regulation system. The phylogenetic analysis revealed close genetic relatedness of three sequenced M. bovis strains to previous reported cow strains from Egypt and human strains from France, as well as relatedness of one M. bovis strain to four human Algerian strains. One sequenced strain was related to one cow strain from Egypt and a human strain from South Africa.
conclusionsAll sequenced M. bovis isolates showed the same spoligotype, but diverse phylogeny. Resistance gene mutations were detected for anti-TB drugs including pyrazinamide, isoniazid, streptomycin, ethambutol, fluoroquinolones, cycloserine, rifampin and delamanid. The virulence profile comprised genes assigned mainly to secretion system, cell surface components and regulation system. Phylogenetic analysis revealed genetic relatedness between our isolates and previously sequenced bovine strains from Egypt as well as human strains from other nearby countries in the region.
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