mcintoshmel24 mcintoshmel24
  • 11-09-2021
  • Health
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What is the first step in the chain of infection?

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ajitanisha000 ajitanisha000
  • 11-09-2021

the infectious agent or pathogen is the first step in the chain of infection

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Sethannan Sethannan
  • 11-09-2021
Attachment is the first stage of infection
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