(Sorry to crash the SN board)
On this thread, you said:
"Richard Halvorsen in his book said that if you average across the studies (which might differ considerably in their figures from stuff I've seen elsewhere) then the figures are something like the SINGLE mumps vaccine is 83% effective in preventing mumps, whilst the MMR is 62% effective in preventing mumps. Apparently some 2005 research (although I haven't seen the reference) from London showed one dose of MMR was 65% effective for mumps, rising to 88% after 2 doses."
I just came across this research and thought you would like to know about it. Here.
Thank you for your informative posts on this subject, by the way. You have single-handedly opened the eyes of many MNers, including myself.