MadSci Network: Immunology

Subject: Why does chickenpox vaccine confer only a 10-year immunity ?

Date: Tue May 15 22:07:43 2001
Posted by Cindy
Grade level: grad (science) School: No school entered.
City: Calgary State/Province: Alberta Country: Canada
Area of science: Immunology
ID: 989978863.Im

Is it true that the chickenpox vaccine confers immunity for only 10 years and 
that an actual chickenpox infection confers lifelong immunity?  Why should this 
be so, if it is true?  I have also read that the severity of a chickenpox 
infection is greater in adults than in children.  I have immunized my children 
against chickenpox - have I placed them at greater risk of injury when they 
become young adults, or grown adults?  How likely is it that they will continue 
their immunizations every 10 years?

Re: Why does chickenpox vaccine confer only a 10-year immunity ?

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