davidjohnson6
Absolutely nothing, but then this is the UK we are talking about where half-arsed attempts are all our governments know. They have provided proof of vaccine status, whether it meets the needs of other countries is neither here nor there, the UK has come up with something to tick a box. You may be able to add the results to a much larger database which is then recognised internationally (Such as IATA) but without any way of it being officially verified by the NHS, there isn't much point in that either. The system is open to massive fraud.