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Import and transmission of Mycobacterium orygis and Mycobacterium africanum, Norway
BACKGROUND: The aim of the current study was to improve our understanding of the origins and transmission of Mycobacterium africanum (MAF) in Norway. METHODS: Whole-genome sequences (WGS) were generated for all (n = 29) available clinical isolates received at the Norwegian National Reference Laborat...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8199368/ https://www.ncbi.nlm.nih.gov/pubmed/34118874 http://dx.doi.org/10.1186/s12879-021-06269-3 |
Sumario: | BACKGROUND: The aim of the current study was to improve our understanding of the origins and transmission of Mycobacterium africanum (MAF) in Norway. METHODS: Whole-genome sequences (WGS) were generated for all (n = 29) available clinical isolates received at the Norwegian National Reference Laboratory for Mycobacteria (NRL) and identified as MAF in Norway, in the period 2010–2020. Phylogenetic analyses were performed. RESULTS: The analyses indicated several imports of MAF lineage 6 from both East and West African countries, whereas MAF lineage 5 was restricted to patients with West African connections. We also find evidence for transmission of MAF in Norway. Finally, our analyses revealed that a group of isolates from patients originating in South Asia, identified as MAF by means of a commercial line-probe assay, in fact belonged to Mycobacterium orygis. CONCLUSIONS: Most MAF cases in Norway are the result of import, but transmission is occurring within Norway. |
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