Four outbreaks of norovirus gastroenteritis after consuming raspberries, Sweden, June-August 2006 Hjertqvist, M and Johansson, A and Svensson, N and Abom, P E and Magnusson, C and Olsson, M and Hedlund, K O and Andersson, Y, Weekly releases (1997–2007), 11, 3038 (2006), https://doi.org/10.2807/esw.11.36.03038-en