Effect of the Consumption of a Fermented Milk on Common Infections in Adults Submitted to Multi-stressor Situation

Inclusion Criteria:

• male and female aged 18-29 years

• attending 7 weeks of firemen training school

• a 19 to 29 kg/m2 body mass index

• found medically healthy (in particular, free of respiratory and GI tract symptoms)

• agreeing to a written informed consent, and who appreciates dairy products andmulti-fruit flavour.

Exclusion Criteria:

• Subject who is not reading and writing French, or not understanding informed consentor study protocol

• subject with allergy or hypersensitivity to milk proteins or dairy foods components (ex: lactose), or with any known food or respiratory allergy;

• subject presenting a severe evolutive or chronic pathology (Ex: cancer, tuberculosis,Crohn disease, cirrhosis, multiple sclerosis, Type I diabetes…) or any past or actualhealth condition that may interfere with the outcome of the study (Ex: HIV,Chemotherapy, malabsorption, ulcer, celiac disease…)

• subject having experienced any infectious disease during the last 7 days

• subject with current diarrhoea or constipation

• subject who is frequently using laxatives or who has been using laxatives during theweek prior his participation to the study

• subject who was under artificial nutrition, had gastro-intestinal surgery or anyintervention requiring general anaesthesia the last 2 months prior to hisparticipation to the study

• subject with special medicated diet (obesity, anorexia, metabolic pathology,nutritional complementation…) or with eating disorders (anorexia, bulimia,alcoholism…)

• subject currently receiving, or who has received during the last months, systemictreatment or topical treatment likely to interfere with evaluation of the studyparameters: antibiotics, antiseptics,antifungal, corticoids, vaccines, anti-histaminicmolecules, non-corticoid anti-inflammatory substances, immunosuppressant treatment…

• subject already enrolled in another clinical study, or currently under an exemptionperiod from a previous study

• female subject who is currently pregnant or breast-feeding, or willing to becomepregnant during the 2 coming months after enrolment in the study

• subject in a situation which in the investigator's opinion could interfere withoptimal participation in the present study or could constitute a special risk for thesubject