Chickenpox can happen more than once once (I've seen it happen), but usually it only comes once in a lifetime.
Unfortunately, later in life you can suffer shingles, because chickenpox is caused by a virus which never leaves the body and settles, lying dormant for years, in nerve roots. When your immune system is depressed or weakened, the virus can be reactivated as a shingles infection.
It's possible, but not likely, to get chickenpox twice after getting chickenpox vaccine. Talk with your health care provider to find out how certain was the diagnosis.
A carrier of chickenpox is someone who is infected but doesn't have symptoms. Most people who get chickenpox do not get infected twice. You are not likely to get chickenpox as an adult if you had them as a child.
You cannot get chickenpox twice. Your body adapts to the virus and you no longer break out. You can, however, get shingles later in life from the chickenpox virus still in your body.
There are no special risks or side effects from extra chickenpox vaccine.
There is no chickenpox RNA; chickenpox is a DNA virus.
A person with a history of chickenpox or history of chickenpox vaccine will typically have a positive antibody test for chickenpox.
Chickenpox vaccine is useful. It reduces the risk of chickenpox, of complications, hospitalizations, and deaths from chickenpox, and of shingles.
Chickenpox is not an autoimmune disease. Chickenpox is a viral communicable disease.
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Yes, you can give chickenpox vaccine in the same area as other vaccines.
Yes, anybody can get chickenpox.
Chickenpox is an illness. It has no advantages.