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CDC: Covid vaccine effectiveness fell from 91% to 66% with Delta variant

forbes.com

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Re: CDC: Covid vaccine effectiveness fell from 91% to 66% with Delta variant

#3

Does anyone know how the 66% effectiveness of the vacine compares to people who were exposed to COVID but never got the vaccine?

It doesn't matter in countries like the US where the vaccine is free to anyone who wants it. We know the vaccine improves survival regardless of previous infections.

https://www.uchicagomedicine.org/forefront/coronavirus-disea...

It's a little bit like mixing and matching vaccines to get better protection (which some countries are forced to do because they don't have access to the best single vaccine).

Re: CDC: Covid vaccine effectiveness fell from 91% to 66% with Delta variant

#4
post #3

Does anyone know how the 66% effectiveness of the vacine compares to people who were exposed to COVID but never got the vaccine?

It doesn't matter in countries like the US where the vaccine is free to anyone who wants it. We know the vaccine improves survival regardless of previous infections. https://www.uchicagomedicine.org/forefront/coronavirus-disea... It's a little bit like mixing and matching vaccines to get better protection (which some countries are forced to do because they don't have access to the best single vaccine).

Nothing in your link supports the claim "we know the vaccine improves survival regardless of previous infections."

> It doesn't matter in countries like the US where the vaccine is free to anyone who wants it

How about the medical bills for a life-altering adverse event? Are those free for anyone who has to pay them? These considerations matter when we're talking about administering a vaccine which may provide very slim or no additional protection over natural immunity. There has already been one study suggesting the second dose of Pfizer even reduces cellular and humoral immune response.

Re: CDC: Covid vaccine effectiveness fell from 91% to 66% with Delta variant

#5
post #3

Earlier quoted context omitted.

It doesn't matter in countries like the US where the vaccine is free to anyone who wants it. We know the vaccine improves survival regardless of previous infections. https://www.uchicagomedicine.org/forefront/coronavirus-disea... It's a little bit like mixing and matching vaccines to get better protection (which some countries are forced to do because they don't have access to the best single vaccine).

Nothing in your link supports the claim "we know the vaccine improves survival regardless of previous infections." > It doesn't matter in countries like the US where the vaccine is free to anyone who wants it How about the medical bills for a life-altering adverse event? Are those free for anyone who has to pay them? These considerations matter when we're talking about administering a vaccine which may provide very s…

oh sorry how many of those life altering adverse events have there been as a percentage of people vaccinated?

Re: CDC: Covid vaccine effectiveness fell from 91% to 66% with Delta variant

#6

Does anyone know how the 66% effectiveness of the vacine compares to people who were exposed to COVID but never got the vaccine?

Immunity acquired through natural infection confers protection that is at least as effective as vaccination [1]. However, the delta variant and other VOCs have mutations that will reduce this protection in both vaccinated and naturally immune individuals.

> A previous history of SARS-CoV-2 infection was associated with an 84% lower risk of infection, with median protective effect observed 7 months following primary infection. This time period is the minimum probable effect because seroconversions were not included. This study shows that previous infection with SARS-CoV-2 induces effective immunity to future infections in most individuals. [1]

[1] SARS-CoV-2 infection rates of antibody-positive compared with antibody-negative health-care workers in England: a large, multicentre, prospective cohort study (SIREN) https://pubmed.ncbi.nlm.nih.gov/33844963/

Re: CDC: Covid vaccine effectiveness fell from 91% to 66% with Delta variant

#7
I do not understand what the 5 year plan is. Even less what the 50 year plan is.

On one hand:

We are blessed to have access to mass genetic vector vaccines. Genetic vector vaccines are amazing at shaving off the sharp edge of the pandemic. Even after effectiveness drops against infection, they are still amazing at preventing severe infections. "VE for severe disease is *still high* after 6 months - 94% for ages 40-59, 86% for 60+.", https://twitter.com/_lewisy/status/1430291421085552641.

On the other hand:

* There is no path to ZeroCovid due to high airborne infectiousness, leaky genetic vector vaccines, immense human global population and reported animal reservoirs.

* The genetic vector vaccine effectiveness appears to diminish after ~6 months, thus booster shots.

* Leaky genetic vector vaccines are bound to give raise to vaccine-resistant variants, just like incomplete antibiotic courses give raise to antibiotic-resistant bacteria.

* Every time a new genetic vector vaccine variant is developed, it takes a long time to pass the FDA tests and even then it carries a tiny, but not zero, risk of ADE. OK, we'll roll the Russian Roulette once. But we can't forever play Russian Roulette with a mutating virus.

Re: CDC: Covid vaccine effectiveness fell from 91% to 66% with Delta variant

#8
post #3

Earlier quoted context omitted.

It doesn't matter in countries like the US where the vaccine is free to anyone who wants it. We know the vaccine improves survival regardless of previous infections. https://www.uchicagomedicine.org/forefront/coronavirus-disea... It's a little bit like mixing and matching vaccines to get better protection (which some countries are forced to do because they don't have access to the best single vaccine).

Nothing in your link supports the claim "we know the vaccine improves survival regardless of previous infections." > It doesn't matter in countries like the US where the vaccine is free to anyone who wants it How about the medical bills for a life-altering adverse event? Are those free for anyone who has to pay them? These considerations matter when we're talking about administering a vaccine which may provide very s…

There’s a CDC study that shows vaccinating while previously infected, further boosts your immunity by more than double https://www.cdc.gov/media/releases/2021/s0806-vaccination-pr...

What they don’t mention is that previous infection alone is at least as good as vaccination alone. According to data from Israel, previous infection is about 6x more effective in fact. https://www.cdc.gov/media/releases/2021/s0806-vaccination-pr...

Given that, I don’t at all agree with the conclusion of that CDC study that you HAVE to get vaccinated if you had a previous infection.

Re: CDC: Covid vaccine effectiveness fell from 91% to 66% with Delta variant

#9
post #7

I do not understand what the 5 year plan is. Even less what the 50 year plan is. On one hand: We are blessed to have access to mass genetic vector vaccines. Genetic vector vaccines are amazing at shaving off the sharp edge of the pandemic. Even after effectiveness drops against infection, they are still amazing at preventing severe infections. "VE for severe disease is *still high* after 6 months - 94% for ages 40-59…

Everyone’s going to get COVID eventually. Natural immunity + 3 rounds of the vaccine are probably enough to make it acceptable level of deadly.

“Zero COVID” was never possible.

Re: CDC: Covid vaccine effectiveness fell from 91% to 66% with Delta variant

#10
post #5

Earlier quoted context omitted.

Nothing in your link supports the claim "we know the vaccine improves survival regardless of previous infections." > It doesn't matter in countries like the US where the vaccine is free to anyone who wants it How about the medical bills for a life-altering adverse event? Are those free for anyone who has to pay them? These considerations matter when we're talking about administering a vaccine which may provide very s…

oh sorry how many of those life altering adverse events have there been as a percentage of people vaccinated?

How many extremely bad disease outcomes have there been as a percentage of all Covid reinfections?
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