crystalkayla23
crystalkayla23 crystalkayla23
  • 27-01-2021
  • Biology
contestada

Explain why all diseases are not infectious. ​

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thegr8aaliyah
thegr8aaliyah thegr8aaliyah
  • 27-01-2021
Infectious diseases are caused by microscopic germs (such as bacteria or viruses) that get into the body and cause problems. Some — but not all — infectious diseases spread directly from one person to another. Infectious diseases that spread from person to person are said to be contagious.
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