Blurryeyed Loc: NC Mountains.

Previous Covid Prevents Delta Infection Better Than Pfizer Shot

People who recovered from a bout of COVID-19 during one of the earlier waves of the pandemic appear to have a lower risk of contracting the delta variant than those who got two doses of the vaccine from Pfizer Inc. and BioNTech SE.

The largest real-world analysis comparing natural immunity—gained from an earlier infection—to the protection provided by one of the most potent vaccines currently in use showed that reinfections were much less common. The paper from researchers in Israel contrasts with earlier studies, which showed that immunizations offered better protection than an earlier infection, though those studies were not of the delta variant.

The results are good news for patients who already successfully battled COVID-19, but show the challenge of relying exclusively on immunizations to move past the pandemic. People given both doses of the Pfizer-BioNTech vaccine were almost six-fold more likely to contract a delta infection and seven-fold more likely to have symptomatic disease than those who recovered.

“This analysis demonstrated that natural immunity affords longer lasting and stronger protection against infection, symptomatic disease and hospitalization due to the delta variant,” the researchers said.


The analysis also showed that protection from an earlier infection wanes with time. The risk of a vaccine-breakthrough delta case was 13-fold higher than the risk of developing a second infection when the original illness occurred during January or February 2021. That’s significantly more than the risk for people who were ill earlier in the outbreak.

Giving a single shot of the vaccine to those who had been previously infected also appeared to boost their protection. The long-term benefit of a booster dose of the inoculation, which has just recently begun in Israel, is unknown.

The data was posted as a preprint article on medRxiv, and hasn’t yet been reviewed by other researchers.

https://fortune.com/2021/08/27/covid-natural-immunity-vaccine-delta-variant-pfizer-protection/

soba1 Loc: Somewhere In So Ca

Thank you

tramsey Loc: Texas

A while back CDC reported that immunity from a previous infection lasts about six months and then quickly deteriorates

BadPhoto Loc: Maryland

This may be good news for those that already recovered from COVID. But, the long term effects of COVID infection have yet to be determined. COVID is a vascular disease, not a respiratory disease, and the long term effects of COVID may be impact to many different organs. It is still better to be vaccinated and not get COVID, than to have gotten COVID. And it is not clear whether getting COVID after being vaccinated is different from getting COVID without being vaccinated. One thing is clear; there are a lot of cases in all permutations that can be followed for years to determine this.

Kraken Loc: Barry's Bay

Good point.

DaveO Loc: Northeast CT

Good deal for those that survive!

Rose42

Thats what they found in Israel. It was 5 months IIRC.

dpullum Loc: Tampa Florida

Yes, Blurryeyed, I agree, getting infected is the best prevention of future infection. True of other historic diseases Paralyzing Polio, Death-scar producing Small Pox, exquisitely painful dengue fever, and even quick to bleed out Ebola if you are one of the few who live. Indeed, avoid vaccines since nature provides immunity and culls out conservative fools.
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The above is in my list of simple answers for simple minds.... agreeing by "reduction to absurdity" an impractical conclusion.** Approach is arguing by agreeing to reveal that the premise is foolish.

**In logic, reductio ad absurdum (Latin for "reduction to absurdity"), also known as argumentum ad absurdum (Latin for "argument to absurdity"), apagogical arguments, negation introduction or the appeal to extremes, is the form of argument that attempts to establish a claim by showing that the opposite scenario would lead to absurdity or contradiction. It can be used to disprove a statement by showing that it would inevitably lead to a ridiculous, absurd, or impractical conclusion,
https://en.wikipedia.org/wiki/Reductio_ad_absurdum

Watash

[quote=tramsey]A while back CDC reported that immunity from a previous infection lasts about six months and then quickly deteriorates

In my opinion, the CDC has lost most of its credibility, if not all. I honestly believe it is
now a political propaganda arm of "The Party".

dlwhawaii Loc: Sunny Wailuku, Hawaii

[quote=Watosh]

That is your opinion, NOT to be confused with facts.

Watash

I thought I said that it was my opinion.
I doubled checked and yes, yes I did say it was my opinion.
Some of the words must have fallen into the ocean on the trip to HI.

dlwhawaii Loc: Sunny Wailuku, Hawaii

Yes, you did say it was your opinion. I agreed with you.
I double checked and I agree it was your opinion.
What words fell into the ocean on their way here?
Do you always argue when someone agrees with you?

Watash

Sorry, but yes I do. Bad habit.
Are you and Kracken related?

Blurryeyed Loc: NC Mountains.

Hey Smart Guy, nobody suggested what your screed assumes..... Jeezsh!

Blurryeyed Loc: NC Mountains.

But Biden said you guys don't believe in facts.