What is a vaccine?

A secondary school student gets vaccinated against TB as her younger sister looks on in this filepic. The BCG vaccine that protects against TB is a live-attenuated vaccine.

A vaccine is a substance that is capable of stimulating the production of antibodies in our bodies, in order to provide immunity against diseases.

Antibodies are proteins produced by our immune system to help defend our body against foreign invaders such as bacteria or viruses.

Subscribe now to our Premium Plan for an ad-free and unlimited reading experience!

Vaccines , infectious diseases


Next In Health

The Star's health journalist on her long, hard battle with long Covid
Risk factors for long Covid in adults identified
Malaysia shares healthcare experience in three UN High-Level Meetings
Is a Covid-19 home test still accurate after its expiry date?
When your shortness of breath is in your head
Are physically-demanding jobs a risk for dementia?
The financial impact of having a stroke
Updated Covid-19 vaccines for 2023-24 approved by US FDA
Long Covid study to look at treatment options for various symptoms
Here's when to expect your baby’s teeth

Others Also Read