Please select the eligibility criteria that correspond to the clinical trial below.
Title: Calcium, Probiotics and Acute Diarrheal Disease Among Indonesian Children Aged 1-6 Years in Low Socio-economic Urban Area of East Jakarta
Brief Summary: This is a long term study on the efficacy of dietary calcium with or without probiotic strains in reducing the mean number of episodes and duration of diarrheal disease.


Options:
A: Inclusion Criteria:

* Apparently healthy children aged 1-6 years, with emphasize on aged 2-5 years, living permanently in low socio-economic urban areas of East Jakarta for at least 6 months
* Parents are willing to sign the informed consent and give the supplements to the children for the period of 6 months
* Capable and willing to drink liquid milk with a straw (acceptance to be tested at screening by providing a sample drink and placebo straw to be consumed under supervision for 2 days)

Exclusion Criteria:

* Calcium intake exceeding 75% of the RDA for calcium (\<375 mg/d) based on a Food Frequency Questionnaire
* Currently breastfed children
* Siblings of already included children that are living in the same household, except if it is a twin sibling
* Severely malnourished with or without oedema (Weight for height-WHZ Z-score of \<-3.00 SD)
* Symptoms of chronic/congenital diseases and disabilities, suspected Tuberculosis by clinical examination, and /or history of allergic disease.
* Taking (any) antibiotics during 2 weeks prior to start of the study (children will be included after 3 weeks of last antibiotic intake
* Participation in another clinical trial at the same time or 2 months prior to the start of this study
* Both mothers and other caregivers present in the family are illiterate
B: Inclusion Criteria:

* Healthy children attending day care at kindergartens located in the Zagreb's city centre
* Age from 1 year to 7 years
* Attendance at daycare centers: \> 3 days per week
* Signed informed consent by the parents

Exclusion Criteria:

* Immunodeficiency
* Receiving probiotic and /or prebiotic products prior to enrolment (2 weeks prior to study start)
* Neoplasms
* Severe chronic disorders
C: Inclusion Criteria:

* Child 36-48 months of age
* Child is currently attending a daycare and has attended for 6 months or less
* Has consumed cow's milk or a cow's milk-based beverage during the 48 hours prior to randomization
* Signed informed consent

Exclusion Criteria:

* Child who received any food product or supplement containing probiotics or prebiotics in the 15 days prior to randomization
* Child with allergy to gluten or serious concurrent illness that will interfere in the general management of the child
* Child with diarrhea or acute respiratory infection during the 48 hours prior to randomization
* Child's z-score of weight for height \< -3 according to World Health Organization criteria
D: Inclusion Criteria:

* Children hospitalized at the Department of Paediatrics, Children's Hospital Zagreb
* Age from 1 year to 18 years
* Signed informed consent by the parents

Exclusion Criteria:

* Immunodeficiency
* Infants from neonatal period until 1 year of age
* Re-hospitalisation (readmission in a hospital within one month)
* Receiving probiotic and /or prebiotic products prior to enrolment (2 weeks prior to hospitalization)
* Neoplasms
* Severe chronic diseases
* Hospitalization shorter than 3 days

Answer: A