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In the UK HMG seems to have somewhat surrendered to the "Let's just forget all about it." wing of the Conservative party so it's not surprising the whole thing is being wound down. It didn't help that the whole thing was given over to someone who's competence is among the lest trusted in the UK IT community. Also the first element - Test - seems to be overlooked; why else have free lateral flow tests been wound down? If you can't test you can't trace.