Rijksinstituut voor Volksgezondheid en Milieu Extensive Spread of SARS-CoV-2 Delta Variant among Vaccinated Persons during 7-Day River Cruise, the Netherlands | RIVM Jaar: 2023 Extensive Spread of SARS-CoV-2 Delta Variant among Vaccinated Persons during 7-Day River Cruise, the Netherlands | RIVM Bron: rivm.nl Download dossier (ZIP) · JSON