Affiliation: | a Laboratory of Milk Hygiene and Technology, Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greeceb Laboratory of Hygiene, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greecec Department of Pathology, Aristotle University of Thessaloniki, 54006 Thessaloniki, Greece |