CHICKENPOX

Humans

Through the air, or direct contact with mucus, saliva, or fluid

Inhaling the air of an infected person or direct contact

RESERVOIR

Humans

PORTAL OF EXIT

Through the air, or direct contact with mucus, saliva, or fluid

METHOD OF TRANSMISSION

Inhaling the air of an infected person or direct contact

CAUSATIVE AGENT

The varicella-zoster virus (VZV)

HOST

It is common on childhood, but adults can be infected too

PORTAL OF ENTRY

Direct contact or by the respiratory tract

The varicella-zoster virus (VZV)

It is common on childhood, but adults can be infected too

Direct contact or by the respiratory tract