Ok thanks Studyforhope for your thoughts.
i gave a very detailed answer. but medhelp took it when they wanted to sign up freshly.
So in short:
The class II cd4 response is obviously important against HBv and these patients having the fortunate HLA were able to clear. For a patient with chronic HBV infection this knowledge has little practical implication. You cannot change your HLA type.
What are your thoughts Studyforhope, Stephen and stef2011 on this ?