TABLE 1. Outline of the educational material used for the treatment group Delivery approach Topic 1: Introduction Storytelling of a real case Topic 2: Germs, germs everywhere Activity 1: Microbial plate count Topic 3: How are germs transmitted? Image of feces & fecal-oral route Activity 2: GloGerm kit Topic 4: Preventing contamination of food Activity 3: " Spot the dirty food handling practices " video Topic 5: Hand washing Activity 4: Hand-washing video Activity 5: " Spot the correct time to wash hands " video Activity 6: Hand-washing activity √ √ √ √ Use of disgust (42) √ Error-based training (56)