Adults exposed to a child with chickenpox in the home are less likely to develop shingles.<br />The vaccination still offers the best protection even if it doesn't provide long-standing immunity.<br />Re-exposure to the herpes virus as an adult, after having chickenpox as a child, boosts immunity.<br />According to UPI, immunity is boosted with repeated exposure but it does not provide complete protection.<br />Infection with the varicella-zoster virus causes chickenpox.<br />After this initial infection, the virus remains dormant in the body, and reactivation, sometimes years later, causes shingles.
