1. Department of Microbiology, University Hospital Antwerp, 2650 Edegem, Belgium
2. Department of Obstetrics and Gynecology, University Hospital Antwerp, 2650 Edegem, Belgium
3. National Reference Centre for Salmonella and Shigella Species, Sciensano, 1050 Brussels, Belgium
4. Laboratory of Medical Microbiology, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, 2610 Wilrijk, Belgium
5. Laboratory of Medical Biochemistry, University of Antwerp, 2610 Wilrijk, Belgium