our body encounters a pathogen for the first time – Discussion Forum

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Virat

Asked: August 7, 2025In: Class 8 Science

When our body encounters a pathogen for the first time, the immune response is generally low but on exposure to the same pathogen again, the immune response by the body is much more compared to the first exposure. Why is it so?

The body remembers the pathogen from the first attack and creates special memory cells. When the same germ attacks again, the immune system responds quickly and strongly, protecting the body more effectively. Class 8 Science Curiosity Textbook Chapter 3 Health – ...