What is becoming evident is that at times the UK strain is insanely infectious, but most of the other time it would appear not to be.
ie. Local and internationally, people have repeatedly picked it up in Q with no face to face contact, yet have not (to date) spread it widely themselves in society, despite being in a position of being able to do so..
AUNZ are probably in a unique position to monitor this as the outbreaks here as so isolated that the pathways of transmission are able to be determined.