Portals of Exit

Virus, after replicating and infecting, will leave the host to infect other hosts. Many portals of exits are the same as the portal of entry.

For example,
  • Skin
  • Mucous membrane
  • Placenta
  • Parental route
These viruses leave the host via secretion (tears, saliva, vaginal, semen, etc) or excretion ( faeces, urine)

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