In article <477dq3$fhg at hippo.shef.ac.uk> Catherine McIntyre,
C.A.Mcintyre at Sheffield.ac.uk writes:
>Does anyone have any ideas of how a human CTL response is perpetuated in
>vivo?
If you mean during a response then the presence of antigen. If you are
reffering to memory CTL then do you believe in persistance of antigen??
If so it is easy to invision. If not good question.
