Not sure if this link has been placed before, but it is apparent that the medical authorities in the UK place very little store by this possible risk whereas as you will see from the Australian efforts, they have put significant effort into it.
Australian Senate air travel report
I think it a worthwhile idea to ensure that GPs are at least aware of the questions.
This written evidence from the House of Lords' Select Committee on Science and Technology is of interest and contains a lot of references for those interested.