3 ms·Should be 1 - 1/R0, right?by travisoneill1 6y agoShould be 1 - 1/R0, right?sterlind 6y agoR0 (and vaccine efficacy) may change with variants though. It's a moving target and not a static threshold.dehrmann 6y agoYes, but R0 is likely going up with the UK strain.