As I don't and will not, do mobiles as many others of the same ilk, there has to be another solution. I spent 42 years in The Netherlands and had a yellow Vaccination Book (Inentingsbewijs) where all my jabs were recorded... Cholera, Yellow Fever... etc. I kept it in my travel bag and still do. All this talk of invasion of privacy in the UK is rubbish. It's the perfect solution and where is there an invasion? My solution would be an NHS card with all this on it... proof that one has paid one's dues and is entitled to free health care in the UK. It's no invasion of privacy and would be very useful and would save the NHS millions. However 'they' would make so complicated the Health Care budget would have to rise accordingly and even then it wouldn't work! Back to square one.