The vaccines aren't stopping transmission so how will herd immunity be achievable ? especially as they're letting in fully vaccinated people from other countries without testingThing is, it only becomes reasonable when the country/state has reached herd immunity (preferably slightly above since these variants seem to be causing uncertainty) or has as many people vaccinated as it seems possible once everyone has reasonable time to have had the vaccine. I imagine in Britain it will probably be a month or two after September, or maybe even pushing to January since we're offering boosters to the vulnerable + the flu