Hmmmm. I still can't figure out the logic.They should have a shorter time periods where they can infect others. It's usually what vaccination does. Like most things it will take a while to find out if that happens with the ones that are being used.
A typical wave always start in the younger age groups and then spreads up. Since schools have been monitored a lot more those can be thrown in too now. Shorter times mean less infection spreading. It's a probability thing. Also of course significant numbers of younger people finish up in hospital. The very young usually don't.
So increase the age range downwards as they have. It will take a while to see how effective that is but experience says it usually is.
It's another imperfect aspect but the end result is more good than bad.
Actually as the age groups in hospital seems to have changed I expected some reaction irrespective of the omicron problem. Have to say seems as I don't look every week now. I'm more in a this will go on for years mood and not very happy about how some aspects are handled. They seem to feel that people are scared so don't emphasise some things as much as they might. I don't know of anybody who is scared and there are plenty of people out and about who aren't either yet various carry on whining about it even politicians - especially them.
The talk is that if you have the virus, with or without symptoms, you can spread it - and you wont know whether you have enough or too little to be able spread it, and on that basis alone the Covid Pass concept seems flawed because the pass wont guarantee that the person wont be a spreader.
Is there a link or something on the scientific justification for a Covid Pass concept?
As an aside, I notice that the previous talk of "viral load" as a reasoning as to why some people may not actually get Covid or only get very mild symptoms, or may not pass on the virus does not now seem to be talked about.