Chickenpox is a viral infection that spreads easily from person to person. The main sign is an itchy rash all over the body.
It is caused by the varicella zoster virus (VZV). The virus spreads quickly to others 1 to 2 days before the rash appears and the first day after the rash appears. The virus can spread to others until all of the blisters have crusted. A person can get the virus from:
Last reviewed March 2020 by
EBSCO Medical Review Board
Shawna Grubb, RN
Last Updated: 3/19/2021
EBSCO Information Services is fully accredited by URAC. URAC is an independent, nonprofit health care accrediting organization dedicated to promoting health care quality through accreditation, certification and commendation.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
To send comments or feedback to our Editorial Team regarding the content please email us at email@example.com. Our Health Library Support team will respond to your email request within 2 business days.