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If a child of 9 mnths had chickenpox does he require vaccine...
If a child of 9 months had chickenpox does he require vaccine at 12 months?
A child who has had chickenpox before their 1st birthday should still get the vaccine as they may not have developed a long lasting immunity and could get chickenpox again.
For more information about chickenpox and the chickenpox vaccine, visit our chickenpox page.