charliewils3831 charliewils3831
  • 03-07-2017
  • Biology
contestada

What is injected into the body during a vaccination?

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ahern81
ahern81 ahern81
  • 03-07-2017

Vaccination involves putting a small amount of an inactive form of a pathogen into the body. 

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hanb7 hanb7
  • 03-07-2017
dead or weakened pathogens so the body will become immune to it and learn how to fight against the real "attackers"
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