RT Journal Article SR Electronic(1) A1 Fonager, J A1 Barzinci, S A1 Fischer, T K YR 2013 T1 Emergence of a new recombinant Sydney 2012 norovirus variant in Denmark, 26 December 2012 to 22 March 2013 JF Eurosurveillance VO 18 IS 25 SP 20506 OP DO https://doi.org/10.2807/1560-7917.ES2013.18.25.20506 UL https://www.eurosurveillance.org/content/10.2807/1560-7917.ES2013.18.25.20506