Figure 1
From: Patient-to-patient transmission of hepatitis C virus (HCV) during colonoscopy diagnosis
Chronological order of endoscopy procedures by date. Chronological scheme of the group of patients analyzed. Boxes represent endoscopy procedures performed to patients who attended the diagnostic unit. Patient order is deduced from the bottom to the top of the column. White boxes correspond to gastroscopies; grey boxes to colonoscopies and black boxes to colonoscopies and outbreak cases. Arrows indicate the date of the last negative HCV-RNA test for patients C2 and C3. It can be deduced from the columns that the order in which endoscopies performed on 19th December 2005 was: gastroscopy, gastroscopy, colonoscopy, patient C1 colonoscopy, patient C2 colonoscopy, gastroscopy, patient C3 colonoscopy, colonoscopy and colonoscopy.