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By definition, a pathogen is anything that is capable of causing disease. These include bacteria, viruses, fungi, parasites, etc.

Pathogens can enter the body through various ways:

  • Through breaks in the skin. Although the skin is a great barrier to pathogens, if the skin is breached in some way (ex. cut, burn), pathogens can get in.
  • Via open cavaties of the body (ex. mouth, nose, ears, eyes, vagina).
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15y ago

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