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covid-19_vaccines:efficacy [2022/01/21 14:43] mathew | covid-19_vaccines:efficacy [2022/10/21 18:11] (current) xinke [Waning Efficacy] | ||
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There are several forms of evidence with regard to vaccine efficacy, of which reports from [[: | There are several forms of evidence with regard to vaccine efficacy, of which reports from [[: | ||
- | Evidence from both trial reports and retrospective analysis show similar results of increased infection and transmission among the recently vaccinated, though published efficacy computations seem to generally exclude these infections from efficacy computations. Including them dramatically changes efficacy results.((March 26, 2021 | [[:Clare Craig]] | Letter to the Editor of the [[:British Journal of Medicine]] | [[https:// | + | Evidence from both trial reports and retrospective analysis show similar results of increased infection and transmission among the //recently// vaccinated, though published efficacy computations seem to generally exclude these infections from efficacy computations. Including them dramatically changes efficacy results.((March 26, 2021 | [[:Clare Craig]] | Letter to the Editor of the [[:British Journal of Medicine]] | [[https:// |
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* There is a substantial conflict of interest as at least 8 of the authors admit to holding Pfizer stock and stock options. | * There is a substantial conflict of interest as at least 8 of the authors admit to holding Pfizer stock and stock options. | ||
* The authors inexplicably failed to make an expected standard risk-adjustment in their calculations, | * The authors inexplicably failed to make an expected standard risk-adjustment in their calculations, | ||
+ | * Sep 28, 2021 - Waning of IgG, Total and Neutralizing Antibodies 6 Months Post-Vaccination with BNT162b2 in Healthcare Workers((September 28, 2021 | Jean-Louis Bayart et al | Waning of IgG, Total and Neutralizing Antibodies 6 Months Post-Vaccination with BNT162b2 in Healthcare Workers | [[https:// | ||
+ | * Nov 18, 2021 - Isolation of 4000 SARS-CoV-2 shows that contagiousness is associated with viral load, not vaccine or symptomatic status((November 18, 2021 | Celine Boschi et al | Emerging Microbes and Infections | Isolation of 4000 SARS-CoV-2 shows that contagiousness is associated with viral load, not vaccine or symptomatic status | [[https:// | ||
+ | * June 23, 2022 - Comparative effectiveness and durability of COVID‐19 vaccination against death and severe disease in an ongoing nationwide mass vaccination campaign((June 23, 2022 | Theodore Lytras et al | J Med Virol | Comparative effectiveness and durability of COVID‐19 vaccination against death and severe disease in an ongoing nationwide mass vaccination campaign | [[https:// | ||
+ | * The lead author and a co-authored also authored a paper in support of lockdowns. That co-author is a spokesman with a spokesman for the [[Hellenic Ministry of Health]].((February, | ||
+ | * The waning of VE from 90% to 80% is substantially less than from other reported retrospective results. | ||
+ | * Says the olderly are more than 1000x as at risk as the young without even a word suggesting that absolute benefits may not justify the risks for the young. | ||
- | === Efficacy by Variant === | + | |
+ | ==== Surveillance Data ==== | ||
+ | |||
+ | === Global COVID-19 Vaccine Systemic Efficacy Statistics === | ||
+ | * [[:Mathew Crawford]] wrote at [[:Rounding the Earth]] about how COVID-19 cases and deaths are going up in far more nations than in where they are going down since vaccine rollout. ([[https:// | ||
+ | * Cases have increased 26.1% in [[: | ||
+ | * Cases have increased 169.6% in [[: | ||
+ | * Cases have increased 690% in [[: | ||
+ | * Cases have increased 56.6% in [[: | ||
+ | * Cases have increased 67.6% in [[:North America]]. | ||
+ | * Cases have increased 59.9% in [[:South America]]. | ||
+ | * Cases have increased 76.3% worldwide. | ||
+ | * Deaths have increased 27.1% in Africa. | ||
+ | * Deaths have increased 122.8% in Asia. | ||
+ | * Deaths have increased 155.3% in Australia | ||
+ | * Deaths have increased 30.2% in Europe. | ||
+ | * Deaths have increased 37.3% in North America. | ||
+ | * Deaths have increased 55.7% in South America. | ||
+ | * Deaths have increased 46.3% worldwide. | ||
+ | |||
+ | * [[:Mathew Crawford]] wrote at [[:Rounding the Earth]] about how there is no distinction in any [[COVID-19 vaccines: | ||
+ | |||
+ | === Selective Reporting === | ||
+ | In February, 2022, the [[:CDC]] admitted to withholding critical data on boosters, hospitalizations, | ||
+ | |||
+ | === Local Observational Studies and Anecdotes === | ||
+ | Little difference in [[: | ||
+ | |||
+ | Despite a 99.5% double-vaccination rate, Co Waterford, Ireland had the highest case rate in all of Ireland in early November, 2021.((November 6, 2021 | [[:Sky News]] | [[https:// | ||
+ | |||
+ | More recently, Rintrah wrote on the vaccine lack of effectiveness in Denmark: | ||
+ | |||
+ | https:// | ||
+ | |||
+ | ==== Efficacy Specific to Those Recovered From COVID-19 ==== | ||
+ | * Effectiveness of the BNT162b2 Vaccine after Recovery from Covid-19((March 31, 2022 | Ariel Hammerman et al | [[:NEJM]] | Effectiveness of the BNT162b2 Vaccine after Recovery from Covid-19 | [[https:// | ||
+ | |||
+ | |||
+ | ==== Booster Efficacy ==== | ||
+ | One group of researchers published a claim of 92% to 95% efficacy against COVID-19 among boosted Israelis.((October 7, 2021 | Yinon M. Bar-On et al | JAMA | [[https:// | ||
+ | |||
+ | ==== Waning Efficacy ==== | ||
+ | In late 2021, a story of waning efficacy begin to appear, seemingly bolstered by several published papers.((October 25, 2021 | Peter Nordstrom and Marcel Ballin | [[https:// | ||
+ | |||
+ | There has been no effort to distinguish waning efficacy from statistical sieves. | ||
+ | |||
+ | === Waning Booster Efficacy === | ||
+ | Medpage Today reported that COVID vaccine booster efficacy may wane quickly.((December 28, 2021 | MedPage Today | [[https:// | ||
+ | |||
+ | ==== Efficacy by Variant | ||
According to Peter McCullough, the data from the UK Covid briefing of December 21, 2021, | According to Peter McCullough, the data from the UK Covid briefing of December 21, 2021, | ||
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{{ : | {{ : | ||
- | == Efficacy vs. Delta == | + | === Efficacy vs. Delta === |
* Aug 12, 2021 - Bernal et al: Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant ((August 12, 2021 | Bernal et al | [[:New England Journal of Medicine]] | [[https:// | * Aug 12, 2021 - Bernal et al: Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant ((August 12, 2021 | Bernal et al | [[:New England Journal of Medicine]] | [[https:// | ||
+ | * June 23, 2022 - Comparative effectiveness and durability of COVID‐19 vaccination against death and severe disease in an ongoing nationwide mass vaccination campaign((June 23, 2022 | Theodore Lytras et al | J Med Virol | Comparative effectiveness and durability of COVID‐19 vaccination against death and severe disease in an ongoing nationwide mass vaccination campaign | [[https:// | ||
+ | * This study from Greece concludes 90% VE which waves to 80% over six months, consistent over age bands. | ||
- | === Critiques of Data === | + | === Efficacy vs. Omicron === |
+ | There are many reports and studies suggesting that the vaccines have a negative efficacy rate with respect to one or more of the SARS-omicron viruses.((December 31, 2021 | The National Pulse | [[https:// | ||
+ | |||
+ | ==== Critiques of Data ==== | ||
[[:Martin Neil]] et al wrote up a statistical analysis ([[https:// | [[:Martin Neil]] et al wrote up a statistical analysis ([[https:// | ||
+ | |||
+ | Professor [[:Norman Fenton]] and colleagues noted numerous statistical sieves and paradoxes that make published studies unreliable.((September, | ||
Pharmaceutical marketing expert, biotech analyst, and former [[: | Pharmaceutical marketing expert, biotech analyst, and former [[: | ||
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In a retrospective analysis of [[:New York]] state hospitals, researchers claim to see no real declining efficacy at preventing hospitalization from the various COVID-19 vaccines as the delta strain became predominant.((Dec 1, 2021 | Rosenberg et al | [[:New England Journal of Medicine]] | [[https:// | In a retrospective analysis of [[:New York]] state hospitals, researchers claim to see no real declining efficacy at preventing hospitalization from the various COVID-19 vaccines as the delta strain became predominant.((Dec 1, 2021 | Rosenberg et al | [[:New England Journal of Medicine]] | [[https:// | ||
- | ==== Examination of All-Cause Mortality Risk ==== | + | ===== Examination of All-Cause Mortality Risk ===== |
* [[Columbia University]] research [[:Spiro Pantazatos]] and colleague [[:Herve Seligmann]] produced [[https:// | * [[Columbia University]] research [[:Spiro Pantazatos]] and colleague [[:Herve Seligmann]] produced [[https:// | ||
* [[https:// | * [[https:// | ||
- | ==== Local Observational Studies ==== | ||
- | Koren et al showed little difference in [[: | ||
- | === Data Controversies === | + | ===== Data Controversies ===== |
+ | Official efficacy calculations often skip the first 10, 12, 14, or 21 days before computing efficacy. But those days cannot be skipped in a risk-benefit analysis (or in real life), and what happens during that span could be dangerous.((September 15, 2021 | el gato malo | [[https:// | ||
COVID-19 vaccine data discussions have been made confusing if not outright fraudulent by the unclarified or misclarified use of data categories such as intervals "first 14 days after dose 1". It is unclear the extent to which such categorization has been used, intentionally or otherwise, to rig vaccine efficacy statistics, but the effect is undisputably large when such miscategorization takes place. | COVID-19 vaccine data discussions have been made confusing if not outright fraudulent by the unclarified or misclarified use of data categories such as intervals "first 14 days after dose 1". It is unclear the extent to which such categorization has been used, intentionally or otherwise, to rig vaccine efficacy statistics, but the effect is undisputably large when such miscategorization takes place. | ||
* Jan 13, 2022 - Data analyst Joel Smalley caught the government of [[: | * Jan 13, 2022 - Data analyst Joel Smalley caught the government of [[: | ||
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* A [[https:// | * A [[https:// | ||
+ | ===== Efficacy Among Key Subgroups ===== | ||
- | ==== Global COVID-19 Vaccine Systemic Efficacy Statistics | + | ==== Immunosuppressed Patients |
- | * [[:Mathew Crawford]] wrote at [[:Rounding the Earth]] about how COVID-19 cases and deaths are going up in far more nations than in where they are going down since vaccine rollout. ([[https://roundingtheearth.substack.com/p/systemic-covid-19-vaccine-efficacy|Systemic COVID-19 Vaccine Efficacy Basics]]) The article reports that as of October 20, 2021, according to the [[:Our World in Data]] COVID-19 dataset, | + | * Nov, 2021 - A study on 133 participants including 53 immunocompetent participants show that patients with [[:chronic inflammatory disease]] (CID) produced two-thirds less antibodies after vaccination.((November, |
- | * Cases have increased 26.1% in [[: | + | |
- | * Cases have increased 169.6% in [[: | + | |
- | * Cases have increased 690% in [[: | + | |
- | * Cases have increased 56.6% in [[: | + | |
- | * Cases have increased 67.6% in [[:North America]]. | + | |
- | * Cases have increased 59.9% in [[:South America]]. | + | |
- | * Cases have increased 76.3% worldwide. | + | |
- | * Deaths have increased 27.1% in Africa. | + | |
- | * Deaths have increased 122.8% in Asia. | + | |
- | * Deaths have increased 155.3% in Australia | + | |
- | * Deaths have increased 30.2% in Europe. | + | |
- | * Deaths have increased 37.3% in North America. | + | |
- | * Deaths have increased 55.7% in South America. | + | |
- | * Deaths have increased 46.3% worldwide. | + | |
- | * [[:Mathew Crawford]] wrote at [[:Rounding the Earth]] about how there is no distinction in any [[:COVID-19 vaccine trials]] data or subsequent retrospective analyses that is inconsistent with the [[: | ||
===== Vaccine Efficacy Vs. Natural Immunity ===== | ===== Vaccine Efficacy Vs. Natural Immunity ===== | ||
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- | ===== Efficacy Among Key Subgroups ===== | ||
- | |||
- | ==== Immunosuppressed Patients ==== | ||
- | * Nov, 2021 - A study on 133 participants including 53 immunocompetent participants show that patients with [[:chronic inflammatory disease]] (CID) produced two-thirds less antibodies after vaccination.((November, | ||
- | |||
- | |||
- | ===== Extreme Cases that Speak to Efficacy ===== | ||
- | * Nov 6, 2021 - Despite a 99.5% double-vaccination rate, Co Waterford, Ireland had the highest case rate in all of Ireland.((November 6, 2021 | [[:Sky News]] | [[https:// | ||
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https:// | https:// | ||
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+ | https:// | ||
=== Fading Efficacy === | === Fading Efficacy === | ||
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https:// | https:// |