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New Study Finds mRNA Vaccines Actually Hurt Long-Term Immunity to Covid Compared to the Unvaccinated

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A new study conducted by scientists from the National Institutes of Health (NIH) and Moderna Inc. showed that mRNA vaccines hurt the long-term immunity to Covid-19 after contracting infection compared to unvaccinated people.

Researchers performed a placebo-controlled vaccine efficacy trial published at medRxiv last month, to evaluate anti-nucleocapsid antibody (anti-N Ab) seropositivity in Moderna vaccine efficacy after Covid-19 infection.

“To evaluate for evidence of prior infection in a person with a history of COVID-19 vaccination, a test that specifically evaluates anti-N should be used. Past infection is best determined by serologic testing that indicates the presence of anti-N antibody,” according to the CDC.

The study analyzed data from 1,789 participants (1,298 placebo recipients and 491 vaccine recipients) with Covid-19 infection at 99 sites in the US during the blinded phase (through March 2021).

The study concludes that anti-nucleocapsid antibody (anti-N Abs) may have lower sensitivity in patients vaccinated with Moderna who become infected. The study also mentioned that the anti-N Ab response in unvaccinated persons has been reported to be durable, with half-life estimates ranging from 68 to 283 days.

Among the participants with confirmed Covid-19 illness, only 21 out of 52 (40%) of people who received the Moderna shots had antibodies compared to the placebo recipients, 605 out 648 (93%).

Alex Berenson posted an in-depth analysis on his Substack:

Unvaccinated people are much more likely to develop broad antibody immunity after Covid infections than people who have received mRNA shots, a new study shows.

Researchers already knew that many vaccinated people do not gain antibodies to the entire coronavirus after they are infected with Covid.

 

Unvaccinated people nearly always gain antibodies to the nucleocapsid protein, which covers the virus’s core of RNA, as well as its spike protein, which allows the virus to attack our cells. Vaccinated people often lack those anti-nucleocapsid antibodies and only have spike protein antibodies.

 

The researchers examined the development of anti-nucleocapsid antibodies in people who had been part of Moderna’s clinical trial and were infected with Covid. As they expected, the scientists found that the vaccinated people were far less likely to develop the anti-nucleocapsid antibodies. Only 40 percent of people who received the shots had antibodies, compared to 93 percent of those who did not.

 

But they then went a step further. Because the infected people had been in the trial, their viral loads had been precisely measured when they were found to have Covid. So the researchers were able to compare vaccinated and unvaccinated people who had the same amounts of virus in their blood.

 

Once again, they found that unvaccinated people were far more likely to develop anti-nucleocapsid antibodies than the jabbed. An unvaccinated person with a mild infection had a 71 percent chance of mounting an immune response that included those antibodies. A vaccinated person had about a 15 percent chance.

 

The chart that should worry the vaccinated: the yellow line shows the odds that an unvaccinated person will develop anti-nucleocapsid antibodies to Sars-Cov-2, stratified by viral load. The blue line shows the same odds for a person who received an mRNA shot.

An unvaccinated person has an almost 60 percent chance of developing antibodies even with an extremely mild infection; a vaccinated person needs almost 100,000 times as much virus in his blood to have the same chance.

As the Gateway Pundit previously reported, a new report released earlier this year by the Centers for Disease Control and Prevention (CDC) revealed that unvaccinated people who recovered from COVID-19 were better protected than those who were vaccinated and not previously infected during the recent delta surge.

The researchers evaluated the data from 1.1 million Covid-19 cases among adults in California and New York (which account for 18% of the U.S. population) from May 30 to Nov. 20, 2021.

“When looking at the summer and fall of 2021, when Delta became predominant in this country, however, surviving a previous infection now provided greater protection,” CDC epidemiologist Benjamin Silk said.

The study confirmed something that we’ve known for a long time that “natural immunity” acquired through previous infection of COVID is more potent than experimental vaccines.


Here is the abstract from the above referenced study:

Abstract

Importance The performance of immunoassays for determining past SARS-CoV-2 infection, which were developed in unvaccinated individuals, has not been assessed in vaccinated individuals.

Objective To evaluate anti-nucleocapsid antibody (anti-N Ab) seropositivity in mRNA-1273 vaccine efficacy trial participants after SARS-CoV-2 infection during the trial’s blinded phase.

Design Nested analysis in a Phase 3 randomized, placebo-controlled vaccine efficacy trial. Nasopharyngeal swabs for SARS-CoV-2 PCR testing were taken from all participants on Day 1 and Day 29 (vaccination days), and during symptom-prompted illness visits. Serum samples from Days 1, 29, 57, and the Participant Decision Visit (PDV, when participants were informed of treatment assignment, median day 149) were tested for anti-N Abs.

Setting Multicenter, randomized, double-blind, placebo-controlled trial at 99 sites in the US.

Participants Trial participants were ≥ 18 years old with no known history of SARS-CoV-2 infection and at appreciable risk of SARS-CoV-2 infection and/or high risk of severe Covid-19. Nested sub-study consists of participants with SARS-CoV-2 infection during the blinded phase of the trial.

Intervention Two mRNA-1273 (Moderna) or Placebo injections, 28 days apart.

Main Outcome and Measure Detection of serum anti-N Abs by the Elecsys (Roche) immunoassay in samples taken at the PDV from participants with SARS-CoV-2 infection during the blinded phase. The hypothesis tested was that mRNA-1273 recipients have different anti-N Ab seroconversion and/or seroreversion profiles after SARS-CoV-2 infection, compared to placebo recipients. The hypothesis was formed during data collection; all main analyses were pre-specified before being conducted.

Results We analyzed data from 1,789 participants (1,298 placebo recipients and 491 vaccine recipients) with SARS-CoV-2 infection during the blinded phase (through March 2021). Among participants with PCR-confirmed Covid-19 illness, seroconversion to anti-N Abs at a median follow up of 53 days post diagnosis occurred in 21/52 (40%) of the mRNA-1273 vaccine recipients vs. 605/648 (93%) of the placebo recipients (p < 0.001). Higher SARS-CoV-2 viral copies at diagnosis was associated with a higher likelihood of anti-N Ab seropositivity (odds ratio 1.90 per 1-log increase; 95% confidence interval 1.59, 2.28).

Conclusions and Relevance As a marker of recent infection, anti-N Abs may have lower sensitivity in mRNA-1273-vaccinated persons who become infected. Vaccination status should be considered when interpreting seroprevalence and seropositivity data based solely on anti-N Ab testing

Trial Registration ClinicalTrials.gov NCT04470427

Question Does prior mRNA-1273 vaccination influence anti-nucleocapsid antibody seroconversion and/or seroreversion after SARS-CoV-2 infection?

Findings Among participants in the mRNA-1273 vaccine efficacy trial with PCR-confirmed Covid-19, anti-nucleocapsid antibody seroconversion at the time of study unblinding (median 53 days post diagnosis and 149 days post enrollment) occurred in 40% of the mRNA-1273 vaccine recipients vs. 93% of the placebo recipients, a significant difference. Higher SARS-CoV-2 viral copy number upon diagnosis was associated with a greater chance of anti-nucleocapsid antibody seropositivity (odds ratio 1.90 per 1-log increase; 95% confidence interval 1.59, 2.28). All infections analyzed occurred prior to the circulation of delta and omicron viral variants.

Meaning Conclusions about the prevalence and incidence of SARS-CoV-2 infection in vaccinated persons based on anti-nucleocapsid antibody assays need to be weighed in the context of these results.

Funding Statement

This study was supported by the National Institutes of Health/National Institute of Allergy and Infectious Diseases through grants UM1AI068635 (to H.E.J.), UM1AI068614 (to L.C.), 3UM1Al148575-01S2 (to H.M.E.S.), and UM1AI069412 (to L.R.B.). The mRNA-1273-P301 study is sponsored by Moderna, Inc. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

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