Vaccine effectiveness against infection with the Delta (B.1.617.2) variant, Norway, April to August 2021
Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin (2021) - Comments
pubmed: 34477054  doi: 10.2807/1560-7917.es.2021.26.35.2100793  issn: 1560-7917 

Elina Seppälä, Lamprini Veneti, Jostein Starrfelt, Anders Skyrud Danielsen, Karoline Bragstad, Olav Hungnes, Arne Michael Taxt, Sara Viksmoen Watle, Hinta Meijerink