The 2nd St. Petersburg Symposium on Tuberculosis and Mycobacteria: Molecular Approach, was held in St. Petersburg, Russia on 5-6 December 2018. A special issue of Infection, Genetics and Evolution will publish articles based on the selected presentations. In this paper, I will discuss some of the hot topics of molecular mycobacteriology highlighted at this meeting that I had the pleasure to organize and honor to chair. The symposium addressed interrelated fundamental and applied issues of modern mycobacteriology such as molecular evolution and phylogenomics, host-microbe interactions and pathogenesis, coevolution of M. tuberculosis with humans, new genomic and postgenomic technologies. Molecular methods for TB diagnostics and drug resistance detection are supported by WHO and whole genome/next generation sequencing presents a comprehensive approach. At the same time, cost and implementation of new methods for direct analysis of clinical samples and/or in low-resource settings remain a great challenge. A due attention was also given to the medically important nontuberculous mycobacteria. Assessment of spectrum of the circulating mycobacterial species in the Russian Federation and the countries of the European Union was presented and the underlying reasons of the observed diversity were discussed. To conclude, the symposium became a multidisciplinary event that was useful to promote networking and exchange of knowledge and experience. The next (third) symposium was planned to be organized in 2021.
Keywords: Database; Drug resistance; Evolution; Mycobacteria; Phylogeny; Tuberculosis; Whole genome sequencing.
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