Rijksinstituut voor Volksgezondheid en Milieu Has influenza B/Yamagata become extinct and what implications might this have for quadrivalent influenza vaccines? | RIVM Jaar: 2022 Has influenza B/Yamagata become extinct and what implications might this have for quadrivalent influenza vaccines? | RIVM Bron: rivm.nl Download dossier (ZIP) · JSON