Vaccines are medicines that train our immune system to fight specific germs. They contain dead or weak germs that help the body recognize and attack real infections if they enter in the future.
Class 8 Science Grade 8 Chapter 3 Health: The Ultimate Treasure question answer
Class 8 NCERT Science Curiosity Chapter 3 Health: The Ultimate Treasure solutions
Vaccines protect us from serious diseases. They are made using weakened or dead parts of germs. When injected into our body, they don’t cause illness but help the immune system learn to fight the real germs later. This process creates acquired immunity. Vaccines are given for diseases like measles, polio and hepatitis. They save millions of lives and stop dangerous diseases from spreading in the community.
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