Sullivan SG, Carlson S, Cheng AC, Chilver MBN, Dwyer DE, Irwin M, Kok J, Macartney K, MacLachlan J, Minney-Smith C, Smith D, Stocks N, Taylor J, Barr IG Full text Influenza 2020 Eurosurveillance. 2020;25(47):pii=2001847