RESEARCH ARTICLE Evaluation of Methods for the Concentration and Extraction of Viruses from Sewage in the Context of Metagenomic Sequencing Mathis Hjort Hjelmsø1☯*, Maria HellmeÂr2☯, Xavier Fernandez-Cassi3, Natàlia Timoneda3,4, Oksana Lukjancenko1, Michael Seidel5, Dennis ElsaÈsser5, Frank M. Aarestrup1, Charlotta LoÈfstroÈ m2¤, SõÂlvia Bofill-Mas3, Josep F. Abril3,4, Rosina Girones3, Anna Charlotte Schultz2 a1111111111 1 Research Group for Genomic Epidemiology, The National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark, 2 Division of Microbiology and Production, The National Food Institute, a1111111111 Technical University of Denmark, Søborg, Denmark, 3 Laboratory of Virus Contaminants of Water and Food, a1111111111 Department of Genetics, Microbiology, and Statistics, University of Barcelona, Barcelona, Catalonia, Spain, a1111111111 4 Institute of Biomedicine of the University of Barcelona, University of Barcelona, Barcelona, Catalonia, a1111111111 Spain, 5 Institute of Hydrochemistry, Chair of Analytical Chemistry, Technical University of Munich, Munich, Germany ☯ These authors contributed equally to this work. ¤ Current address: Food and Bioscience, SP Technical Research Institute of Sweden, Lund, Sweden *
[email protected] OPEN ACCESS Citation: Hjelmsø MH, HellmeÂr M, Fernandez-Cassi X, Timoneda N, Lukjancenko O, Seidel M, et al. Abstract (2017) Evaluation of Methods for the Concentration and Extraction of Viruses from Viral sewage metagenomics is a novel field of study used for surveillance, epidemiological Sewage in the Context of Metagenomic Sequencing. PLoS ONE 12(1): e0170199. studies, and evaluation of waste water treatment efficiency. In raw sewage human waste doi:10.1371/journal.pone.0170199 is mixed with household, industrial and drainage water, and virus particles are, therefore, Editor: Patrick Tang, Sidra Medical and Research only found in low concentrations.