Vaccines
⭐ MasteredVaccines train your immune system to recognise germs safely so you are protected against serious diseases. Many diseases like smallpox have been wiped out thanks to vaccines.
Smallpox was declared eradicated in 1980.
All about Vaccines
A vaccine trains your immune system to recognise a germ safely, without making you seriously ill. It often contains a weakened or inactive part of the germ, or instructions for your body to make a harmless piece of it. Your body then learns how to fight the real germ if it ever meets it.
Vaccines have protected millions of people from serious diseases. Smallpox has been completely wiped out thanks to a global vaccination campaign. Children are offered vaccines at set ages, and you should check the schedule with your doctor or local health service.
🎮 Try it yourself!
Loading…
Real-life uses of Vaccines
- Protecting children from measles, polio and other serious diseases
- Reducing the spread of disease in communities
- Helping to wipe out smallpox and make other diseases rarer
Frequently asked questions about Vaccines
Do vaccines hurt?
You may feel a quick scratch or pinch, and sometimes a sore arm for a day or two. This is normal and much less serious than the diseases vaccines prevent.
Are vaccines safe?
Vaccines are tested carefully before they are approved, and they are monitored for safety. Serious side effects are very rare.
Can I ask questions about vaccines?
Yes. Ask a parent, doctor or nurse anything you want to know about vaccines.