2011. Laboratory of Food Microbiology, Department of Food Science, University of Copenhagen, Denmark (8.1.2011 – 17.6.2011). Επιβλέπουσα: Καθηγήτρια Sussane Knøchel.
2000 – 2001. Food Safety Microbiology Laboratory, Central Public Health Laboratory, Colindale, London, United Kingdom (4.10.2000 – 12.12.2000, 28.4.2001 – 22.7.2001). Επιβλέπουσα: Dr. Moira Brett.
1998 – 1999. Institute of Medical Microbiology, Immunology and Parasitology, University of Bonn, Germany (5.3.1998-10.4.1998, 10.10.1998-1.12.1998, 9.3.1999-29.3.1999). Επιβλέπων: Dr. Panagiotis Karanis.
