Figure 6From: GET WELL: an automated surveillance system for gaining new epidemiological knowledge Data on "vomit", 2007-2010. Queries on vomit submitted to Google according to Google Insights for Search and to VÃ¥rdguiden, from week 1, 2007 to week 4, 2010. The Google data are normalized and scaled. The VÃ¥rdguiden data are normalized.Back to article page