Explain what is a pathogen and why it can make someone sick?

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asked Feb 10, 2017 25.4k views

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Lece · Answer 1 · 2017-02-16T21:34:28+0000

a python is a forgein body that enters the human body. (for example it's like pollen for people thay have allergies) it makes people sick becaise the body identifies it as a threat and tries to expell it

Explain what is a pathogen and why it can make someone sick?

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