“Herd Immunity” not achievable with the delta variant given its “reproductive number or “Re” is too high, but vaccinations can significantly lower severe illness and death.
Link 1 of 2
https://www.google.com/amp/s/abc7chicago.com/amp/coronavirus-vaccine-efficacy-against-delta-variant-covid-booster-shot-is-pfizer-effective/10949401/
Link 2 of 2
https://m.youtube.com/watch?v=JhRb5hnTseU
Comments
I do no understand the argument "herd immunity" is not achievable. All it means is that virus dies out because it has no one left to infect. In some cases the number will be like 95 precent if your Re number is high enough. In fact you could make argument that if Re is high enough you get as many people vaccinated as possible to lower the severity of the symptoms have everyone else go party together in close proximity and than you get your 95%. The other way is just open up protect the most vulnerable and let it run its course. The vaccine is then a way to protect the vulnerable. Of course I doubt you ever get rid of it since it is in so many animals. I am not sure what Australias long term goal is or if it is even worth it. If you buy that natural immunity is the only sure way than everybody in Australia gets it at some point or another. Maybe they are hoping to get everyone vaccinated before that.
If you want to go down the rabbit hole of endless possibilities, here is another one. Having people locked down for over year lowered everyone's immunity so that Delta is now more effective that it would be in any other case. In any case I see all this football stadiums packed, people at concerts, young people are just saying "forget this I am going out". Delta is now going to start the downtrend. People are simply done with this.
As for boosters the number of people that are going to get the booster is going to be much lower, maybe up to 50% lower unless you have mandates with real teeth. Simply being fired is not going to but it, you need to jail people or something. So I predict the booster thing is going to be bust. Saying you cannot fly to Europe or go to Mortens Steak House in Soho is not going to much of an incentive for large portions of the US population.
As for the labs the question is are they going to make boosters a mandate as well? As I said I think a lot more people are going to say no to the booster.