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The developer of the AstraZeneca shot says the Delta variant has made herd immunity impossible

Mitz

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The developer of the AstraZeneca shot says the Delta variant has made herd immunity impossible because vaccinated people can still transmit the virus

Achieving herd immunity is "not a possibility" with the Delta variant circulating, Sir Andrew Pollard said.

"That is because the variant can be transmitted by vaccinated people. We don't have anything which will stop that transmission", he said.

The Delta variant has changed the equation for achieving herd immunity, the developer of the Oxford/AstraZeneca has said.

"We know very clearly with coronavirus that this current variant, the Delta variant, will still infect people who have been vaccinated and that does mean that anyone who's still unvaccinated, at some point, will meet the virus," Pollard said.

He said it was unlikely that herd immunity will ever be reached, saying the next variant of the novel coronavirus will be "perhaps even better at transmitting in vaccinated populations."


Vaccinated people can still get the Delta variant, albeit as a milder case

Some experts had hoped that herd immunity could be reached with COVID-19, as was the case with measles, which is also highly infectious.

Many countries have achieved herd immunity with measles by vaccinating 95% of the population with it, like in the US, where endemic transmission ended in 2000. That is because once a person is vaccinated against measles, they cannot transmit the virus.

With COVID-19, vaccines still fulfill their primary role: to protect from severe disease. According to the US Centers for Disease Control and Prevention, vaccinated people who catch the Delta variant are 25 times less likely to have severe case or die. The overwhelming majority who do catch it will have mild or no symptoms.

But growing evidence suggests that, with the Delta variant, fully vaccinated people can still transmit the virus.

"We don't have anything which will stop that transmission [of COVID-19] to other people," Pollard said.

Israel is a good example of this: COVID-19 cases dropped in the country after it vaccinated about 80% of adults - prompting some to hope that it had reached herd immunity - but the Delta variant has since brought another surge of cases.

https://www.businessinsider.com/del...ity-not-possible-astrazeneca-developer-2021-8

 
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It's only going to keep mutating til it eventually claims us all.
Mother Natures revenge.
 
Vape Green
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From a scientific standpoint, viruses are one of several methods that cull populations and attempt to keep equilibrium between resources and overuse of resources.

In Human Biology 100 at University they have terms called "biotic potential", "carrying capacity" and "dieback". It's worth looking those up, and then one can ascribe any other worldly creation of the process. Whatever tipped the first domino, the cause and effect are very, very, very well studied.

"Mother Nature has had enough of us" isn't a terribly inaccurate simplification of the idea. It just anthropomorphizes it.

End result: lots of species have come and gone on Earth.

Oh sh!te, that sounded like school. This is a vape forum! Sorry :-/
 
this will be why there are so many stories appearing about anti vax folk dying of covid. it’s not very good, they really want to be having a think about their situation.
 
AcmeFog
What am I missing?
Won't Pharma be working on new vaccines to try and fight variants?
Or, is that it?
Has Sir Andrew Pollard been selectively quoted?
Questions, questions, questions?
 
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