Vaccines are created using viruses or components of viruses that are responsible for diseases. However, these viruses are modified in vaccines to render them harmless. The vaccines are administered into our bodies, typically through injections. Consequently, our immune system responds by producing antibodies, granting us immunity. While some vaccines provide lifelong immunity, others might necessitate periodic booster shots to sustain immunity.

The majority of infants are eligible for vaccination. However, if your baby is experiencing a high fever or has had a severe reaction to specific vaccines in the past, it is advisable to seek guidance from a healthcare professional. If your child's immune system is weakened due to illness or medical treatment, it's important to avoid live vaccines such as MMR (measles, mumps, and rubella) or polio.

After the injection, it's typical for your infant to cry for a short while, usually just a few seconds. The injection site may cause your baby to feel a little sore, and there may even be a little lump over it. These side effects should go away in a few days. Additionally, your child may experience a mild temperature for one or two days following the injection. Though there is no scientific proof to back up this theory, some parents are worried about a possible connection between autism and the MMR vaccine. If you have any concerns, please see a physician.

CHAS GP clinics and polyclinics offer Singaporean children full subsidies* for vaccines under the National Childhood Immunization Schedule (NCIS).

*Valid only on specific vaccination brands. For the most recent list of subsidized vaccination brands, please visit https://go.gov.sg/vaccine-list.