
Dr Philippa Whitford @Dr_PhilippaW
@PolidiotSpotter @StefSimanowitz @MattHancock R0 at start of epidemic, was 2.5-3.5, = natural infectiousness of virus, for how long & how many people #COVID19 case has contact with. Last bit what we changed with #Lockdown. Now, instead of isolating everybody, need #TestTraceIsolate to just isolate cases & their contacts. — PolitiTweet.org