- 10,946
- 3,818
cmb said:To have to keep boosting a vaccination every few months, for everyone on the planet, does not strike me as the hallmarks of a stunning success.
This requires a new thread I will create.
Thanks
Bill
Last edited:
cmb said:To have to keep boosting a vaccination every few months, for everyone on the planet, does not strike me as the hallmarks of a stunning success.
Who has determined that the SARS-Cov-2 vaccine has to be boosted every few months? As far as I know, only one booster is recommended and that applies to elderly (65+) and those who are immunocompromised. Otherwise, only two shots of Pfizer or Moderna, or one of others is currently recommended. Boosters are optional otherwise. It is too early to determine if annual immunizations (like that of influenza) are necessary. It is recommended to get the influenza vaccine annually, but many don't.cmb said:To have to keep boosting a vaccination every few months, for everyone on the planet, does not strike me as the hallmarks of a stunning success.
Experts don’t know yet how long COVID-19 vaccines will be effective. Studies of two of the most prominent COVID-19 vaccines suggest they remain effective for at least six months. The CEO of one vaccine maker said immunity may start to fade within a year.Astronuc said:Who has determined that the SARS-Cov-2 vaccine has to be boosted every few months?
In terms of success the UK we are out of lockdown and have been since June.cmb said:Experts don’t know yet how long COVID-19 vaccines will be effective. Studies of two of the most prominent COVID-19 vaccines suggest they remain effective for at least six months. The CEO of one vaccine maker said immunity may start to fade within a year.
That is a very political, and non-scientific, turn of phrase because there is no data to suggest the NHS was ever 'overwhelmed' any more than it normally is/was, in fact quieter than usual.pinball1970 said:...
The NHS although busy (it was busy before) is no longer overwhelmed
We are at a quarter of the numbers pre double vaccine in Jancmb said:That is a very political, and non-scientific, turn of phrase because there is no data to suggest the NHS was ever 'overwhelmed' any more than it normally is/was, in fact quieter than usual.
If you have your own 'theory' about this, then it's not the place.
Millions were spent to set up over-flow hospitals that never saw patients.
https://coronavirus.health.ny.gov/covid-19-breakthrough-dataAs of data received through October 24, 2021, the New York State Department of Health is aware of:
These results indicate that laboratory-confirmed SARS-CoV-2 infections and hospitalizations with COVID-19 have been uncommon events among the population of people who are fully-vaccinated (≥14 days after completing their vaccine series).
- 120,653 laboratory-confirmed breakthrough cases of COVID-19 among fully-vaccinated people in New York State, which corresponds to 1.0% of the population of fully-vaccinated people 12-years or older.
- 8,114 hospitalizations with COVID-19 among fully-vaccinated people in New York State, which corresponds to 0.07% of the population of fully-vaccinated people 12-years or older.
To understand the above statistics, it is important to consider that they reflect not only the effectiveness of vaccines, but also changes over time in the intensity of the epidemic, circulating variant strains (such as Delta), and protective behaviors (e,g, masking and social distancing) against COVID-19, as well as the growing number of people fully-vaccinated in New York State.
| Confirmed Cases People with a positive molecular test | 914,510 |
| Probable Cases People with a positive antigen test, or symptoms and confirmed exposure, or probable death | 204,726 |
| Total Cases | 1,119,236 |
| Hospitalizations People hospitalized within 14 days of diagnosis | 124,327 |
| Confirmed Deaths Deaths with positive molecular test | 29,398 |
| Probable Deaths Cause of death listed as COVID-19 or similar, but no positive molecular test | 5,159 |
| Total Deaths | 34,557 |
We know how this ends: The Coronavirus becomes endemic, and we live with it forever. But what we don’t know—and what the U.S. seems to have no coherent plan for—is how we are supposed to get there. We’ve avoided the hard questions whose answers will determine what life looks like in the next weeks, months, and years: How do we manage the transition to endemicity? When are restrictions lifted? And what long-term measures do we keep, if any, when we reach endemicity?
The answers were simpler when we thought we could vaccinate our way to herd immunity. But vaccinations in the U.S. have plateaued. The Delta variant and waning immunity against transmission mean herd immunity may well be impossible even if every single American gets a shot. So when COVID-related restrictions came back with the Delta wave, we no longer had an obvious off-ramp to return to normal—are we still trying to get a certain percentage of people vaccinated? Or are we waiting until all kids are eligible? Or for hospitalizations to fall and stay steady? The path ahead is not just unclear; it’s nonexistent. We are meandering around the woods because we don’t know where to go.
Nov 02 fully (18+ yrs)
State pos cases deaths vaccinated state pop. 2020
Calif 4,933,895 72,289 61% 39.54 M
Texas 4,233,730 71,587 53% 29.18 M
Florida 3,650,637 59,670 60% 21.57 M
New York 2,563,625 56,044 67% 20.21 M
Pennsylvania 1,564,939 31,454 61% 13,01 M
Illinois 1,706,985 28,695 60% 12,81 M
Georgia 1,600,593 28,142 48% 10,71 M
New Jersey 1,199,738 27,980 66% 9.29 M
Ohio 1,547,788 24,527 52% 11.80 M
Michigan 1,283,087 23,706 54% 10.08 M
Nov 05 fully (18+ yrs)
State pos cases deaths vaccinated
Calif 4,951,476 72,559 62%
Texas 4,246,805 71,987 54%
Florida 3,656,010 59,670 60%
New York 2,575,181 56,144 67%
Pennsylvania 1,580,346 31,783 61%
Illinois 1,715,452 28,803 61%
Georgia 1,604,539 28,345 48%
New Jersey 1,203,755 28,011 67%
Ohio 1,560,695 24,763 52%
Michigan 1,295,049 23,855 54%
Well if you don't set goals, then you'll never fail to achieve them. The near-term (6-12mo?) path remains as it has been for the past several months; keep vaccinating and ease restrictionsnsaspook said:A Interesting article with important questions.
https://www.theatlantic.com/health/archive/2021/11/what-americas-covid-goal-now/620572/
We're in a sort of equilibrium right now in cases with evidence of seasonal causes. We seem to be seeing the effects of Vaccination and Ventilation. In the south people go indoors because of the heat, in the north people go indoors because of the cold.russ_watters said:Well if you don't set goals, then you'll never fail to achieve them. The near-term (6-12mo?) path remains as it has been for the past several months; keep vaccinating and ease restrictionsas we get tired of themas infection rates allow.
The lack of interest in a near-term strategy probably tells us the longer term strategies as well. I foresee it being incorporated into the seasonal flu mitigation strategy, with optional annual booster shots and an acceptable annual death toll on a similar level of the flu. In the US, the flu usually kills 20-50,000 people a year. So I think we might stomach up to 100,000 additional COVID deaths a year without bothering with a stronger effort. If the 2022-2023 season is worse than that (or the summer 2022 trend doesn't look good), maybe we'll try something else.
What's more interesting/worrisome to me is the countries that have had low case rates to date (China and the island countries). They are at much higher risk than the US because they set a goal - an aggressive goal - and will likely need to abandon it because I don't think it would be possible to live with draconian mitigation measures forever. China of course can just force everyone to get vaccinated and digitally contact trace, but even at that, they are going to have to live with several orders of magnitude more deaths. If we believe them (not sure if I do), they've only had 5,000 deaths from COVID, achieved with draconian lockdowns. Unless they want to continue that forever, they'll have to accept maybe 500,000 deaths a year (something of a wild guess). That will be a tough pill to swallow.
We're watching Australia's vaccination rate in another thread and will have to see where they land. But they've already seen more cases in the past few months than the rest of the pandemic combined. They've had 1,450 deaths so far. What if they need to live with 10,000 per year moving forward? How will they stomach it if the new normal for them is worse than the pandemic?
Cases have fallen most sharply in the South, where the delta wave hit earliest and hardest over the summer, with average daily infections in the region down by about 84% from peak levels and continuing to fall. The decline has been so steep that Florida, where hospitals were overrun as it fought one of the worst Covid outbreaks in the nation this summer, is now the state with the fewest number of average daily new cases on a population-adjusted basis.
..
“I think we are really starting to see some seasonality – maybe not winter-spring like we see with the flu, but more when people are more indoors versus outdoors,” she said. “In Florida, we were more indoors in the hot time of the summer, and now we have the opportunity to be more outdoors.”
Things are trending in the opposite direction outside of the U.S. South. Cases are up 25% in the Midwest, 18% in the Northeast and 4% in the West over the past two weeks. Hospitalizations, which lag reported infections, are down 9% in the Northeast over that same period but largely flat in the Midwest and West.
On a Friday afternoon in early October this year, 8-year-old Maricia Redondo came home from her third grade class in the San Francisco Bay Area with puffy eyes, a runny nose and a cough.
"On Saturday morning we both got tested," says Vanessa Quintero, Maricia's 31-year-old mother. "Our results came back Monday that we were both positive."
She was freaking out for two reasons. First, her large, extended family had already fought a harrowing battle against COVID-19 last year — in the fall of 2020. The virus had traveled fast and furious through their working class neighborhood back then, in the East Bay city of San Pablo. Four generations of Vanessa's family live next door to each other in three different houses there, all connected by a backyard.
In the case of this family, fewer family members were sick the second time — they credit vaccination.Research suggests immunity against a natural infection lasts about a year. And here it was almost exactly the same time of year and the family was fighting COVID-19 again.
"Reinfection is a thing," says Dr. Peter Chin-Hong, a specialist in infections diseases and professor of medicine at the University of California, San Francisco. "It probably manifests itself more when the variant in town looks different enough from the previous variants. Or enough time has elapsed since you first got it, [and] immunity has waned." He says a second infection is still not common, but doctors are starting to see more cases.
Abstract: More than one year after its inception, the Coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome Coronavirus 2 (SARS-CoV-2) remains difficult to control despite the availability of several working vaccines. Progress in controlling the pandemic is slowed by the emergence of variants that appear to be more transmissible and more resistant to antibodies1,2. Here we report on a cohort of 63 individuals who have recovered from COVID-19 assessed at 1.3, 6.2 and 12 months after SARS-CoV-2 infection, 41% of whom also received mRNA vaccines3,4. In the absence of vaccination, antibody reactivity to the receptor binding domain (RBD) of SARS-CoV-2, neutralizing activity and the number of RBD-specific memory B cells remain relatively stable between 6 and 12 months after infection. Vaccination increases all components of the humoral response and, as expected, results in serum neutralizing activities against variants of concern similar to or greater than the neutralizing activity against the original Wuhan Hu-1 strain achieved by vaccination of naive individuals2,5-8. The mechanism underlying these broad-based responses involves ongoing antibody somatic mutation, memory B cell clonal turnover and development of monoclonal antibodies that are exceptionally resistant to SARS-CoV-2 RBD mutations, including those found in the variants of concern4,9. In addition, B cell clones expressing broad and potent antibodies are selectively retained in the repertoire over time and expand markedly after vaccination. The data suggest that immunity in convalescent individuals will be very long lasting and that convalescent individuals who receive available mRNA vaccines will produce antibodies and memory B cells that should be protective against circulating SARS-CoV-2 variants.
Compared with the Pfizer COVID-19 vaccine, the Moderna COVID-19 vaccine has a slightly lower risk of COVID-19 outcomes, including documented SARS-CoV-2 infection, symptomatic COVID-19, and COVID-19-related hospitalization, intensive care unit admission, and death, over a 24-week period, according to a team of researchers. This pattern was consistent for periods when Alpha or Delta were the predominant variant.The study was published online Wednesday in the New England Journal of Medicine.
Astronuc said:As of this morning (Nov 5).
Dec 05 fully (18+ yrs)
State pos cases deaths vaccinated
Calif 5,111,469 75,008 64%
Texas 4,343,389 74,512 55%
Florida 3,699,624 61,701 62%
New York 2,775,977 57,273 69%
Pennsylvania 1,779,151 33,902 59%
Georgia 1,634,659 29,537 50%
Illinois 1,840,377 29,521 62%
New Jersey 1,272,728 28,457 68%
Ohio 1,731,003 26,851 53%
Michigan 1,514,467 26,077 55%
Parents will have to wait for a Coronavirus vaccine for their young children after Pfizer and BioNTech announced that they are modifying their clinical trial to include a third shot at least two months after the initial two-dose regimen for children under age 5.
The companies reported that two doses of the paediatric vaccine failed in 2-, 3- and 4-year-olds to trigger an immune response comparable to what was generated in teens and older adults. The vaccine did generate an adequate immune response in children 6 months to 2 years old.
If three doses are successful at triggering a protective immune response, the companies expect to submit the data to regulators in the first half of next year.
The vaccine is called CORBEVAX. It uses old but proven vaccine technology and can be manufactured far more easily than most, if not all, of the COVID-19 vaccines in use today.
. . .
The story of CORBEVAX begins some two decades ago. Peter Hotez and Maria Elena Bottazzi were medical researchers at George Washington University in Washington, D.C., where they worked on vaccines and treatments for what are called neglected tropical diseases, such as schistosomiasis and hookworm.
When a strain of Coronavirus known as SARS broke out in 2003, they decided to tackle that disease. After moving to Houston to affiliate with Baylor College of Medicine and the Texas Children's Center for Vaccine Development, they created a vaccine candidate using protein subunit technology. This involves using proteins from a virus or bacterium that can induce an immune response but not cause disease.
"It's the same technology as the hepatitis B vaccine that's been around for decades," Hotez says.
. . .
When a new strain of Coronavirus triggered the COVID-19 pandemic, Hotez and Bottazzi figured they could dust off their old technology and modify it for use against COVID-19. After all, the virus causing COVID-19 and the virus causing SARS are quite similar.
Astronuc said:Slightly more than a month later
Jan 07 fully (18+ yrs)
State pos cases deaths vaccinated
California 6,037,652 77,248 67%
Texas 4,996,914 76,770 57%
Florida 4,633,077 62,688 64%
New York 4,057,084 59,913 72%
Pennsylvania 2,240,549 37,642 64%
Illinois 2,386,672 31,660 65%
Georgia 1,925,143 30,478 51%
Ohio 2,170,139 30,072 56%
Michigan 1,850,791 29,920 57%
New Jersey 1,815,163 29,444 71%
What is already known about this topic?
The Pfizer-BioNTech vaccine, currently authorized for persons aged ≥5 years, provides a high level of protection against severe COVID-19 in persons aged 12–18 years. Vaccine effectiveness against multisystem inflammatory syndrome in children (MIS-C), which can occur 2–6 weeks after SARS-CoV-2 infection, has remained uncharacterized.
What is added by this report?
Estimated effectiveness of 2 doses of Pfizer-BioNTech vaccine against MIS-C was 91% (95% CI = 78%–97%). Among critically ill MIS-C case-patients requiring life support, all were unvaccinated.
What are the implications for public health practice?
Receipt of 2 doses of Pfizer-BioNTech vaccine is highly effective in preventing MIS-C in persons aged 12–18 years. These findings further reinforce the COVID-19 vaccination recommendation for eligible children.
Two doses of the Pfizer Inc (PFE.N) and BioNTech (22UAy.DE) COVID-19 vaccine are highly protective against a rare but often serious condition in children that causes organ inflammation weeks after COVID-19 infections, a U.S. Centers for Disease Control and Prevention report said on Friday.
The vaccine was estimated to be 91% effective in preventing Multisystem Inflammatory Syndrome in Children (MIS-C) in 12- to 18-year-olds, the study said. MIS-C causes inflammation in children in organs including the heart, lungs, kidneys and brain two to six weeks after a mild or asymptomatic infection.
Protein subunit vaccines have been shown to have similar efficacy before (e.g. Novavax released data from a phase 3 trial of its protein subunit vaccine back in January 2021 which showed 90% efficacy against symptomatic infection; it also recently received emergency use authorization in India). However, despite being among the vaccine candidates selected for funding by the Coalition for Epidemic Preparedness Innovations (CEPI) and Project Warp Speed, it has fairly consistently failed to meet expectations in delivering its vaccine, in part due to many manufacturing issues. Whether these manufacturing issues are limited to Novavax or applies to other protein subunit vaccines (like the CORBEVAX vaccine) is not clear. However, these issues may stem from Novavax's lack of experience with production and manufacturing, an issue that would also likely apply to the CORBEVAX vaccine as well. Thus, having a working vaccine is not sufficient for making an impact on global vaccination; it is also important to have the experience to scale up production as well.Astronuc said:Dr. Peter Hotez and Dr. Maria Elena Bottazzi of Texas Children's Hospital and Baylor College of Medicine have developed a COVID-19 vaccine that could prove beneficial to countries with fewer resources.
https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2788172Question What was the frequency of adverse events (AEs) in the placebo groups of COVID-19 vaccine trials?
Findings In this systematic review and meta-analysis of 12 articles including AE reports for 45 380 trial participants, systemic AEs were experienced by 35% of placebo recipients after the first dose and 32% after the second. Significantly more AEs were reported in the vaccine groups, but AEs in placebo arms (“nocebo responses”) accounted for 76% of systemic AEs after the first COVID-19 vaccine dose and 52% after the second dose.
In 25 U.S. jurisdictions, decreases in case incidence rate ratios for unvaccinated versus fully vaccinated persons with and without booster vaccine doses were observed when the Omicron variant emerged in December 2021. Protection against infection and death during the Delta-predominant period against infection during Omicron emergence were higher among booster vaccine dose recipients, and especially among persons aged 50–64 and ≥65 years.
Cumulative 1-14Jan,2022 Fraction of
Age Group Deaths Deaths Cumulative
90 and Over 7,915 351 0.0443
80 to 89 13,480 541 0.0401
70 to 79 13,024 475 0.0365
60 to 69 9,207 336 0.0365
50 to 59 4,401 196 0.0445
40 to 49 1,575 72 0.0457
30 to 39 659 34 0.0516
20 to 29 203 12 0.0591
10 to 19 26 4 0.1538
0 to 9 23 5 0.2174
50513 2026
Hmmm, like a very bad flu season ... is it still looking like triple vax is good enough, even among the elderly? It's sad to see so many deaths in Australia even with 99% of the elderly double vaccinated - triple vax was necessary and good enough (except for the immunocompromised) for Delta. Is triple vax still good enough for Omicron?bhobba said:Here in Queensland, with 90% double vaccinated, of the 50 in ICU, 40% were unvaccinated. Vaccination looks like it does provide significant protection. The number of deaths we are seeing is about the same, so far, as a bad flu season. Considering the large difference in R0, this is very positive. Fingers crossed, these early signs are maintained as the predicted peak is now occurring or nearing where I live.
Thanks
Bill
atyy said:Is triple vax still good enough for Omicron?
I think the current opinion is that triple J&J does not work very well, but 2 Pfizer and 1 Moderna (or the other way around) work best.atyy said:Is triple vax still good enough for Omicron?
atyy said:Is triple vax still good enough for Omicron?
https://www.cell.com/cell/fulltext/S0092-8674(22)00006-X?rss=yesIn this issue of Cell, three studies confirm that SARS-CoV-2 Omicron strongly evades a key immune defense—neutralizing antibodies. However, while one- or two-dose vaccine regimens fail to induce anti-Omicron neutralizing antibodies, a homologous third-dose booster rescues neutralization function in a way that highlights the adaptability of immune memory, where recalled immunity extends antibody reach across SARS-CoV-2 variants.
We address whether T cell responses induced by different vaccine platforms (mRNA-1273, BNT162b2, Ad26.COV2.S, NVX-CoV2373) cross-recognize early SARS-CoV-2 variants. T cell responses to early variants were preserved across vaccine platforms. By contrast, significant overall decreases were observed for memory B cells and neutralizing antibodies. In subjects ∼6 months post-vaccination, 90% (CD4+) and 87% (CD8+) of memory T cell responses were preserved against variants on average by AIM assay, and 84% (CD4+) and 85% (CD8+) preserved against Omicron. Omicron RBD memory B cell recognition was substantially reduced to 42% compared to other variants. T cell epitope repertoire analysis revealed a median of 11 and 10 spike epitopes recognized by CD4+ and CD8+ T cells, with average preservation > 80% for Omicron. Functional preservation of the majority of T cell responses may play an important role as second-level defenses against diverse variants.
Do you have sources for these two statements? I would be interested in seeing the data.fresh_42 said:I think the current opinion is that triple J&J does not work very well, but 2 Pfizer and 1 Moderna (or the other way around) work best.
I have read today that the reason why Omicron is less severe than Delta is, that Omicron can't stop the cells from interferon production.