Chickenpox attacks the integument system in the body. There is only one type of infection. Chickenpox can be transmitted by Airborne Respiratory Droplets (cough or sneeze), skin to skin (handshake or hugs), saliva (kissing or shared drinks), mother to baby (by pregnant, nursing, or labor), or by touching a contaminated surface (Blanket or Doorknob)
The symptoms include fever, fatigue, loss of appetite, blister, scabs and red spots. There is no damage to the body though.
You can find chickenpox on another person
If you want to defend yourself, don't touch or hang around someone who has it. To prevent chickenpox, you need to get the vaccine, or already have it. The treatment for chickenpox is pills and itch cream.