Word list

This list explains what the bold words in this document mean.

Asthma

Asthma is an illness that can make it hard to breathe.

Infection

When you have an infection, it means germs have gotten into your body.

This can make you very sick.

Immune system

Your immune system is how your body protects you from germs and keeps you healthy.

Immunisation

An immunisation is medicine that helps to protect you from an infection.

Immunisations start to protect you straight away.

Symptoms

Symptoms are signs that you might be sick.

Vaccine

A vaccine is medicine that:

helps your body get ready to fight an infection
can stop you getting very sick.

Vaccines take about 2 weeks to start protecting you.

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