Mon Prof Augmenté
Body Defenses
Age 14 · Health
The immune system spots viruses and attacks them. Vaccines train those defenses before a real infection, while medicines mostly make symptoms less severe.
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In the picture
- White blood cell: a rounded immune cell with a pale nucleus.
- Y-shaped antibody: a small forked protein that sticks to a virus.
- Virus particle: a round spiked particle.
- Syringe: a clear tube with a needle and plunger.
Examples
- A flu shot trains your body before flu season.
- A cold medicine can lower a fever, but it does not kill the cold virus.
Key takeaways
- Vaccines help the body respond faster to a virus.
- Medicines for viral illness often reduce symptoms rather than remove the virus.
Quiz: Body Defenses (Age 14)
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What do vaccines help the body do?
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According to the card, what is the main job of medicines for a viral illness?
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What does the immune system do when it spots a virus?
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