A Wonderleaf question
How does my immune system fight off germs when I get sick?
a real page from the book
Your immune system fights germs in layers: skin, mucus, and stomach acid block many at the start, while white blood cells attack the ones that get through. Some cells swallow germs, some destroy infected cells, and others make antibodies that mark the exact invader.
That miserable sick feeling is often useful work. Warmth, redness, swelling, and fever help slow some germs and bring more defenders to the busy spot. Afterward, the body may keep a record of that germ, so next time the response can be faster.
Wonder words
- mucus
- antibody
- fever
- inflammation
Try it out
Draw a simple body outline, then add barriers, germ dots, and helper cells racing toward one scratch or sneeze.
Read the whole picture book
Watercolour scenes, straight answers, about three minutes cover to cover.
Open the picture bookKeep wondering
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