All children must have received the necessary immunisation as recommended by the Ministry of Health (MOH), including vaccination against diphtheria and measles which are compulsory under the Infectious Diseases (Diphtheria and Measles Vaccination) Regulations 2021, before enrolling in a preschool. All local and foreign children must have at least 1 dose of MMR, and primary series of diphtheria (comprises of 3 doses) vaccination for enrolment. They must complete the second dose of MMR at a scheduled date specified by the medical practitioner.

For infants who have yet to reach the required age for specific immunisations, they may still be enrolled in the preschool but parents should bring them for the vaccinations as scheduled.