Rijksinstituut voor Volksgezondheid en Milieu Epidemiological and virological assessment of influenza activity in Europe, during the 2004-2005 winter | RIVM Jaar: 2007 Epidemiological and virological assessment of influenza activity in Europe, during the 2004-2005 winter | RIVM Bron: rivm.nl Download dossier (ZIP) · JSON