Higher risk of SARS-CoV-2 Omicron BA.4/5 infection than of BA.2 infection after previous BA.1 infection, the Netherlands, 2 May to 24 July 2022 Andeweg, Stijn P and de Gier, Brechje and Vennema, Harry and van Walle, Ivo and van Maarseveen, Noortje and Kusters, Nina E and de Melker, Hester E and Hahné, Susan JM and van den Hof, Susan and Eggink, Dirk and Knol, Mirjam J, Eurosurveillance, 28, 2200724 (2023), https://doi.org/10.2807/1560-7917.ES.2023.28.7.2200724