Dr Philippa Whitford @Dr_PhilippaW
@Lessthan15chars As I said in my question, can have use in +ve case-finding - but must avoid false reassurance if -ve. So shouldn’t be used for Test & Release as Dido Harding planning for contacts! Have to consider gain if £43Bn spent instead on making #TestTraceIsolate & SUPPORT actually work! — PolitiTweet.org