kiki9306 kiki9306
  • 10-06-2021
  • Health
contestada

There are many diseases that do not infect a person more than once, such as chicken pox and measles what is responsible for this lifetime immunity?

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victormldndo
victormldndo victormldndo
  • 10-06-2021
your immune system!! it’s learns to fight off the diseases and keep them out
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