Addressing the concerns that trigger vaccine hesitancy

Vaccines are substances that teach our immune system to recognise and defend our body against harmful microorganisms without exposing us to the disease itself. — TNS

Humans are exposed to environments that have numerous microorganisms, some of which are harmless while others are harmful.

When a microorganism invades the human body, it is recognised as foreign by the body’s immune system, which then mounts a response to fight off the microorganism.