1 Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, the Netherlands. Electronic address: m.j.sonneveld@erasmusmc.nl.
2 National Institute for Public Health and the Environment, Centre for Infectious Disease Control, Epidemiology and Surveillance, Bilthoven, the Netherlands.
3 Department of Donor Medicine Research, Laboratory of Blood Borne Infections, Sanquin Research, Amsterdam, the Netherlands.
4 Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, the Netherlands.