elvinngarcdhqie elvinngarcdhqie
  • 13-01-2016
  • Health
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how are vaccines related to memory cells

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Caitlyn00
Caitlyn00 Caitlyn00
  • 15-01-2016
When you get a vaccine it injects a controlled amount of the illness into you, so the immune system can build up an immunity. The memory cells come into play when the illness comes back. 
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