they've signed a letter calling on g7 nations to donate 20% of their vaccines by the end of this august. signatories include david beckham, orlando bloom and olivia colman. in herfirst uk interview, the lead on covid vaccines at unicef told bbc newsnight there was no time for procrastination. the unintended consequence of saving all these vaccines up till christmas time is that countries won't be able to absorb them and roll them out, and therefore they could end up going to waste. we could see millions of doses of vaccine is not used and expiring, and that would be a tragedy. the uk government told us it will share the majority of any future surplus vaccines when they are available. i asked miss caprani, "should the vulnerable in developing countries be prioritised over the young in the uk?" now at some point, no doubt, we will need to vaccinate under—18s,