[giantDinosaur]

I wasn't aware that we thought any of the vaccines provide sterilising immunity. Has this changed? The Pfizer trial was regarded with some scepticism a while back as they didn't test everyone, so we don't really know how good it was at preventing infection, for example.

[pmg101]

There was news last week that the AZ vaccine could reduce transmission by 76%. However although widely reported in the media I did see some controversy about this (as yet not peer reviewed) study.

https://www.rte.ie/news/coronavirus/2021/0202/1194681-oxford...

[garmaine]

It appears that J&J does, and there is reason to be optimistic the Pfeizer and Moderna vaccines do, although the data isn’t in yet.