Figure 1From: The Prevalence of Norovirus in returning international travelers with diarrhea Symptom duration in relation to the date of return. Graphic representation of the start date of gastrointestinal symptoms for all nine returning travelers with diarrhea. Patients enlisted as Patients 1 and 2 in this graph have claimed to have suffered from gastrointestinal symptoms for more than ten days before their return to Germany.Back to article page