This whole Amazon/NHS story over the weekend is a prime example of how toxic things have become around the NHS. I've done a reasonable amount of work on patient data over the years, and have always strongly advocated that patients both own and control their own data, so the headlines appeared both shocking, and yet not altogether surprising. After all, the data from things like Google's Project Baseline is all owned by Google.
Yet, it seems like the headlines were complete and utter nonsense, as Amazon aren't getting their hands on patient data whatsoever. The NHS website has various information about symptoms and the like, which can be freely used by any organisation, just so long as it's only used in the UK. If you want to use it more broadly, then you need an agreement with the NHS to do so. That's all Amazon have got. The ability to use the symptom information on the NHS website to (presumably) train Alexa on this kind of stuff.
You 'could' argue that they should have got some money out of Amazon for what is presumably useful information to them, but the headlines of this being another example of the 'NHS being flogged off' are utterly absurd.