nice piece. why did you NOT include polio on your list? or would you agree with me, that maybe the smallpox model is appropriate for polio eradication.

in any case, if we are to succeed, I'm afraid the smallpox model is the only one that will get us there. just musing, but might be interesting to do a comparative analysis of the polio eradication effort and the guinea worm effort: these are the only two initiatives that have any hope of succeeding, IMHO, and the former must (I think) continue to follow the smallpox model while the latter could succeed with the softer model (I think).

anyway, thanks for continuing to stimulate thinking and debate.
Carl Tinstman