Clinical influenza activity in Europe is still low, with influenza B virus being dominant: an update from EISS Meijer, A and Falcão, J M and de Jong, J C and Kyncl, J and Meerhoff, T J and Meuwissen, L. E. and Nicoll, A and Van Der Velden, J and Paget, W J, Weekly releases (1997–2007), 11, 2899 (2006), https://doi.org/10.2807/esw.11.07.02899-en