de Gier, B., Andeweg, S., Joosten, R., ter Schegget, R., Smorenburg, N., van de Kassteele, J., Hahné, S., van den Hof, S., de Melker, H. & Knol, M. 2021, 'Vaccine effectiveness against SARS-CoV-2 transmission and infections among household and other close contacts of confirmed cases, the Netherlands, February to May 2021', Eurosurveillance, 26(31), article no: 2100640.. https://doi.org/10.2807/1560-7917.ES.2021.26.31.2100640