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)