Chickenpox is caused by a virus. Most children who get chickenpox have fever, an itchy rash, and feel sick and uncomfortable for about a week or so. In rare cases, kids can have serious problems from chickenpox. These can include skin infection (cellulitis), pneumonia (lung infection) and liver complications. It can even affect the brain.
It was good news when a vaccine to protect against chickenpox was first licensed in 1995.
People who have "immunity" (protection) to chickenpox do not need to get the vaccine. Your child has immunity if:
- His or her medical record shows that she received 2 doses of chickenpox vaccine.
- A laboratory test shows the child definitely had a chickenpox infection.
- A healthcare professional, such as the child's doctor, said the child definitely had chickenpox in the past.
- If you are not sure if your child has had chickenpox before or has ever gotten the vaccine, then your child should get 2 doses of the vaccine.
Find out more about this book:Harvard Medical School The Truth About Your Immune System