The Effect of Yogurt Containing BB12 on Children's Health and Child Care Absenteeism

Inclusion Criteria: * An informed consent has been signed by the parents. * The child is at least one year old and has not had his 4th birthday at the beginning of the study * The child is healthy. * The child attends child care center at least 5 days a week, \> 4 hours per day. Exclusion Criteria: * Was born preterm. * Had a birth weight \<2,500 g. * Has congenital anomalies. * Has a structural abnormality of the digestive tract or previous significant gastrointestinal surgery. * Has chronic disease or malignancy. * Has a serious, unstable medical condition. * Is Failure to Thrive (FTT) (\<5th percentile of ideal body weight). * Has an allergy or atopic disease. * Has an allergy or intolerance to milk/dairy products. * Has an established diagnosis of lactase deficiency. * Is predisposed to infection (i.e., compromised immune system, HIV-AIDS, active bacterial disease, under steroid treatment). * Received antibiotic treatment or intentionally consumes probiotic products during the preceding 4 weeks. (If the subject was on antibiotics before the beginning of the study or probiotics, a washout period of 2 weeks is required.)