Shields around a neighbourhood

In the picture

1. 1A blue shield: a vaccinated person whose immune system remembers the germ
2. 2The unshielded house: a person who cannot be vaccinated and is protected by the people around them
3. 3The green germ: it is blocked at the ring of shields and cannot reach the house in the middle

Examples

• Babies too young for the measles vaccine are protected when the people around them are vaccinated.
• A classmate having chemotherapy is safer when nearly everyone in school has had their vaccines.

Quiz: Shields around a neighbourhood (Age 13)

1. 1

   What does a vaccine do for your immune system?

   • It permanently removes all germs from your body
   • It makes your body produce more germs so you get used to them
   • It trains the immune system to remember a germ, so it can react fast later
2. 2

   Why does it help the whole community when most people are vaccinated?

   • Vaccinated people can no longer catch any illness at all
   • Germs struggle to spread, which also protects people who cannot be vaccinated
   • Germs get stronger, but only unvaccinated people notice
3. 3

   Who benefits from high vaccination coverage in a community?

   • Only people who are already ill
   • Only the people who got vaccinated
   • Vaccinated people and also people who cannot be vaccinated

The answers, each with its explanation, are in the app. This quiz is free there while the lesson is in the free week.