It looks like there will be a need for multiple vaccine shots for the Pfizer Covid-19 vaccine, since one shot is not enough to cope with the mutant strains. That is the present mutant strains, let alone those coming over the next decade, and hundreds of years, maybe thousands of years. That might be why the hi-tech freaks are advocating going full robot and abandoning biology, totally. Sounds good, until one thinks about computer viruses. It will be like Microsoft word, everywhere.
“As shortages of COVID-19 vaccine supplies force more countries stretch the time between the first and second vaccine doses to try and vaccinate more people, the latest data out of a UK study of vaccination rates has stumbled on a disturbing finding: the study found that people who have had one dose are still at risk from mutated strains of the virus.
The study, published Friday afternoon in London by Imperial College London and published in the journal Science, examined the immune responses of health-care workers following their first dose of the Pfizer jab.
It found that people who had previously been infected saw significantly enhanced protection against mutant strains of the virus typically referred to as "variants". Those who only received the jab, but weren't previously infected, showed an immune response that was "less strong after a first dose, potentially leaving them at risk from variants." The findings show that those who have received the Pfizer jab aren't "fully protected" from COVID-19 variants.
Professor Rosemary Boyton, Professor of Immunology and Respiratory Medicine at Imperial College London, who led the research, said: “Our findings show that people who have had their first dose of vaccine, and who have not previously been infected with SARS-CoV-2, are not fully protected against the circulating variants of concern. This study highlights the importance of getting second doses of the vaccine rolled out to protect the population.”
Imperial College published the results in full on its website.
Meanwhile, another study released Friday came to a similar conclusion, showing that some patients who have received their first dose still wind up in the hospital with COVID symptoms.
The news appeared to weigh on US stocks, which tumbled to their lows of the session shortly after the news broke. Analysts claimed the study is a problem for the global growth outlook - which has already taken a hit thanks to to the latest data out of China - as countries like Canada aim to stagger doses by months to try and make the most out of limited supplies.
https://www.imperial.ac.uk/news/220613/prior-sarscov2-infection-boosts-response-variants/
“A single dose of vaccine boosts protection against SARS-CoV-2 coronavirus variants, but only in those with previous COVID-19, a study has found.
In those who have not previously been infected and have so far only received one dose of vaccine the immune response to variants of concern may be insufficient.
The findings, published today in the journal Science and led by researchers at Imperial College London, Queen Mary University of London and University College London, looked at immune responses in UK healthcare workers at Barts and Royal Free hospitals following their first dose of the Pfizer/BioNTech vaccine.*
They found that people who had previously had mild or asymptomatic infection had significantly enhanced protection against the Kent and South Africa variants, after a single dose of the mRNA vaccine. In those without prior COVID-19, the immune response was less strong after a first dose, potentially leaving them at risk from variants.
Professor Rosemary Boyton, Professor of Immunology and Respiratory Medicine at Imperial College London, who led the research, said: “Our findings show that people who have had their first dose of vaccine, and who have not previously been infected with SARS-CoV-2, are not fully protected against the circulating variants of concern. This study highlights the importance of getting second doses of the vaccine rolled out to protect the population.”
Blood samples were analysed for the presence and levels of immunity against the original strain of SARS-CoV-2, as well as the Kent (B.1.1.7) and South Africa (B.1.351) variants of concern. Along with antibodies – the Y-shaped proteins which stick to the virus and help block or neutralize the threat – the researchers also focused on two types of white blood cell: B-cells, which ‘remember’ the virus; and T cells, which help B cell memory and recognise and destroy cells infected with coronavirus.
People who have had their first dose of vaccine, and who have not previously been infected with SARS-CoV-2, are not fully protected against the circulating variants of concern Professor Rosemary Boyton Department of Infectious Disease
They found that after a first dose of vaccine, prior infection was associated with a boosted T cell, B cell and neutralizing antibody response, which could provide effective protection against SARS-CoV-2, as well as the Kent and South Africa variants.
However, in people without previous SARS-CoV-2 infection, a single vaccine dose resulted in lower levels of neutralizing antibodies against SARS-CoV-2 and the variants, potentially leaving them vulnerable to infection and highlighting the importance of the second vaccine dose.
The team looked at two variants of concern, however, they think it possible that the findings will apply to other variants in circulation, such as the Brazil (P.1) and India (B.1.617 and B.1.618) variants.
It remains unclear precisely how much protection is offered by T cells. Interestingly, the mutations in the Kent and South Africa variants here resulted in T cell immunity which could be reduced, enhanced or unchanged compared to the original strain, depending on genetic differences between people.
Professor Boyton commented: “Our data show that natural infection alone may not provide sufficient immunity against the variants. Boosting with a single vaccine dose in people with prior infection probably does. As new variants continue to emerge, it is important to fast track global rollout of vaccines to reduce transmission of the virus and remove the opportunities for new variants to arise.”
Professor Danny Altmann, Professor of Immunology at Imperial, commented: “At a time of generally improving outlook in those countries with substantial vaccine rollout programmes, this study reminds us of the need to be vigilant about the threat of the variants. Most vaccinated people in the UK have received just one dose. While we know this offers remarkable protection against the original virus, our data suggest this leaves people susceptible to variants of concern."
Professor Áine McKnight, of Queen Mary University of London, said: “Our study offers reassurance and a warning. We show that current vaccines offer some protection against variants of concern. However, people who have received only the first course of a double dose vaccine show a more muted immune response. We must ensure that the global vaccination programme is fully implemented. Current events in India make painfully clear the cost of complacency.”
Professor James Moon, of University College London and Barts, said: “These results represent collaborative science at its best between hospitals, universities and public bodies providing important timely results to inform policy and strategy.”
The study was carried out in collaboration with researchers at Barts Health NHS Trust, Public Health England, Royal Free Hospital NHS Trust, University College London and University of Nottingham.
https://science.sciencemag.org/content/early/2021/04/29/science.abh1282
You are the research!
https://www.naturalnews.com/2021-04-30-health-ranger-mypillow-mike-lindell-hope-jesus.html