Quality of antibodies improves for months after COVID-19 vaccination: Study
2 years, 10 months ago

Quality of antibodies improves for months after COVID-19 vaccination: Study

Deccan Chronicle  

Washington: Antibodies produced by immune cells become steadily more formidable and precisely targeted against the SARS-CoV-2 virus for at least six months after COVID-19 vaccination, according to a study. "If the virus did not change, most people who got two doses of this vaccine would be in very good shape," said senior study author Ali Ellebedy, an associate professor at Washington University. We never thought that six months following that second injection, many people would still be actively improving the quality of their antibodies,” Ellebedy said. Even six months after vaccination, 10 out of 15 people still had B cells in their germinal centers - boot camps where B cells are trained to make ever-better-quality antibodies.

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History of this topic

Post-COVID-19 conditions change a person's immunological response: Study
1 year, 8 months ago

Post-COVID-19 conditions change a person's immunological response: Study

Hindustan Times  

A recent study from Cedars-Sinai's Smidt Heart Institute reveals that extended COVID-19 may be caused by a dysfunction of the immune system. The study, published in BMC Infectious Diseases, found that after people with long COVID-19 received the COVID-19 vaccine, they produced antibodies against the virus that causes COVID-19 for months longer than expected. To study the immune response of …

Covid-19 vaccine protects patients with blood cancer: Study
2 years ago

Covid-19 vaccine protects patients with blood cancer: Study

Hindustan Times  

People with blood cancer usually have a weak immune system, putting them at an increased risk of becoming very ill from Covid-19. Covid-19 vaccine protects patients with blood cancer: Study A team led by physicians Dr. Andrea Keppler-Hafkemeyer and Dr. Christine Greil from the Medical Center-University of Freiburgand virologist Prof. Oliver T. Keppler from LMU Munich has now characterized in …

Covid Vaccine Immunity Wanes Faster in Cancer Patients, Boosters Are Best Shot: UK Study
2 years, 7 months ago

Covid Vaccine Immunity Wanes Faster in Cancer Patients, Boosters Are Best Shot: UK Study

News 18  

Some cancer patients are showing a rapid decline in Covid-19 vaccine effectiveness by three to six months compared to the general population, says a large-scale study carried out by the UK Coronavirus Cancer Evaluation Project, stressing on the importance of booster doses for those battling the malignant disease. They also found that vaccines offered higher protection against Covid-associated hospitalisation than …

'Longer interval between COVID-19 vaccine doses generates nine times higher antibodies'
2 years, 8 months ago

'Longer interval between COVID-19 vaccine doses generates nine times higher antibodies'

Firstpost  

The finding by researchers at the UK Health Security Agency also suggests that eight months after primary infection may be an optimum time to receive the first vaccine in those with prior infection. When analysing dosing intervals, the researchers found that longer dosing interval was associated with antibody levels that were up to nine times higher in naive participants with …

How has the COVID-19 pandemic changed after two years?
2 years, 9 months ago

How has the COVID-19 pandemic changed after two years?

Associated Press  

How has the COVID-19 pandemic changed after two years? Safe, effective vaccines have been developed and there’s better understanding of how to treat people sickened by the virus. Among the options are antivirals, such as the drug remdesivir, or newer pills from Pfizer and Merck; anti-inflammatory drugs including steroids; and depending on what variant is circulating, lab-made antibodies to attack …

COVID: Antibodies improve in quality for months after vaccination, claims study
2 years, 10 months ago

COVID: Antibodies improve in quality for months after vaccination, claims study

India TV News  

For at least six months after Covid-19 vaccination, antibodies produced by immune cells become steadily more formidable and more precisely targeted against the virus that causes Covid-19, according to a study of the antibody response to the Pfizer-BioNTech vaccine. The researchers found that B cells targeted against SARS-CoV-2 persisted in the germinal centres - like boot camps where B cells …

Three doses of Pfizer Covid vaccine better than two: Study
2 years, 10 months ago

Three doses of Pfizer Covid vaccine better than two: Study

Deccan Chronicle  

Washington: A third dose of the Pfizer COVID-19 vaccine conferred higher effectiveness against infection and hospitalisation than two doses of the preventive after one month, a study has found. "When we looked at the effectiveness of the two doses of Pfizer–BioNTech vaccine versus three doses, we see a benefit with three doses that exceeds that achieved with two doses alone," …

Covid Booster Efficacy Wanes Significantly by Fourth Month: US Study
2 years, 10 months ago

Covid Booster Efficacy Wanes Significantly by Fourth Month: US Study

News 18  

The efficacy of third doses of the Pfizer and Moderna mRNA vaccines wanes substantially by the fourth month after administration, a new study by the US Centers of Disease Control and Prevention said Friday. During the Omicron-predominant period, vaccine efficacy against Covid-associated emergency department or urgent care visits was 87 percent during the two months after a third dose, but …

Vaccine protection better maintained against severe COVID-19: Lancet study
2 years, 11 months ago

Vaccine protection better maintained against severe COVID-19: Lancet study

Firstpost  

The results showed that protection against infection of any severity waned progressively following the peak which occurred a month after the second dose London: The vaccine-induced protection against SARS-CoV-2 infection wanes within a few months, but protection against severe COVID-19 appears to be better maintained, according to a study published in The Lancet journal. “The bad news is that the …

Vaccine protection better maintained against severe COVID-19: Lancet study
2 years, 11 months ago

Vaccine protection better maintained against severe COVID-19: Lancet study

Deccan Chronicle  

London: The vaccine-induced protection against SARS-CoV-2 infection wanes within a few months, but protection against severe COVID-19 appears to be better maintained, according to a study published in The Lancet journal. "The bad news is that the protection against infection seems to be diminished by seven months after the second dose of vaccine," said Peter Nordstrom, a professor at Umea …

COVID-19 vaccine booster provides effective antibody protection against Omicron, says Lancet study
2 years, 11 months ago

COVID-19 vaccine booster provides effective antibody protection against Omicron, says Lancet study

Firstpost  

COVID-19 Vaccine Booster | The study found that in people who had received the Pfizer vaccine for all three doses, antibody levels against Omicron after a third dose were similar to those previously reached against Delta after only two shots. London: A third dose of COVID-19 vaccine increases the level of antibodies that can effectively neutralise the Omicron variant of …

Explained: Why T cell vaccines could be the key to long-term immunity from COVID-19
2 years, 11 months ago

Explained: Why T cell vaccines could be the key to long-term immunity from COVID-19

Firstpost  

Many of the doses designed to date – including Moderna’s, Pfizer’s and AstraZeneca’s – have focused just on the spike protein of the coronavirus. The main types are B cells, which make antibodies, and T cells, which either support B cell antibody production or act as killer cells to destroy the virus. This knowledge suggests that, against COVID, a good …

Breakthrough Infections Generate Strong Immunity to Covid-19 Variants: Study
3 years ago

Breakthrough Infections Generate Strong Immunity to Covid-19 Variants: Study

News 18  

People who are infected after getting vaccinated develop a greatly enhanced immune response to variants of the SARS-CoV-2 virus that causes COVID-19, according to a lab study. The results suggest each exposure following vaccination actually serves to strengthen immune response to subsequent exposures even to new variants of the virus. "We have not examined the Omicron variant specifically, but based …

Covid vaccine that creates T-cells ‘gives better immune response than current jabs’
3 years, 1 month ago

Covid vaccine that creates T-cells ‘gives better immune response than current jabs’

The Telegraph  

A new vaccine designed to specifically create T-cells against Covid produces a better immune response than the alternatives already in use, according to trial data. "The induction of SARS-CoV-2 T-cell immunity is a central goal for vaccine development and of particular importance for patients with congenital or acquired B-cell deficiencies," the researchers wrote in a paper published in Nature. T-cell …

COVID-19 vaccine gets weak antibody response in people on immunosuppressants
3 years, 1 month ago

COVID-19 vaccine gets weak antibody response in people on immunosuppressants

Deccan Chronicle  

Washington: A new study has found that people who received two doses of the Pfizer COVID-19 vaccine while on TNF inhibitors, generated less powerful and shorter-lived antibodies against the virus that causes COVID-19 than healthy people and those on other kinds of immunosuppressants. "People taking TNF inhibitors didn't make as many of the potently inhibitory antibodies, and the ones that …

Covid: Do vaccines wear off and why do we need booster jabs?
3 years, 1 month ago

Covid: Do vaccines wear off and why do we need booster jabs?

The Independent  

Sign up to our free Living Well email for advice on living a happier, healthier and longer life Live your life healthier and happier with our free weekly Living Well newsletter Live your life healthier and happier with our free weekly Living Well newsletter SIGN UP I would like to be emailed about offers, events and updates from The Independent. …

The older you are, the more Covid antibodies you have, study finds
3 years, 2 months ago

The older you are, the more Covid antibodies you have, study finds

Deccan Chronicle  

Washington: With the emergence of SARS-CoV-2 variants worldwide, the pandemic's spread is accelerating. A research team led by Joelle Pelletier and Jean-Francois Masson, both professors in Universite de Montreal's Department of Chemistry, wanted to find out whether natural infection or vaccination led to more protective antibodies being generated. Antibodies produced after an infection by the original, "native" strain of the …

Effectiveness of Covid vaccines declining somewhat
3 years, 2 months ago

Effectiveness of Covid vaccines declining somewhat

NL Times  

The effectiveness of the Covid-19 vaccines in protecting vaccinated people against severe illness and transmission is declining somewhat, RIVM director Jaap van Dissel said to parliament on Wednesday, NOS reports. The vaccines' effectiveness in protecting against transmission dropped from 75 percent in June to 50 percent now, Van Dissel said. More people are being hospitalized in the big cities, Van …

Covid vaccinated people with prior infection may have more antibodies: Study
3 years, 2 months ago

Covid vaccinated people with prior infection may have more antibodies: Study

Deccan Chronicle  

Washington: Antibody levels against SARS-CoV-2, the virus that causes COVID-19, stay more durable in people who were infected by the disease and then received two doses of vaccine compared with those who only got immunised, according to a study. After adjusting for vaccine type, age and sex, antibody levels were compared for those with and without prior SARS-CoV-2 infection at …

COVID-19 vaccines more protective than past infection, study shows
3 years, 2 months ago

COVID-19 vaccines more protective than past infection, study shows

LA Times  

A nursing student draws a COVID-19 vaccine into a syringe. A new study shows that vaccinations can offer better protection against COVID-19 than natural immunity from a prior infection. Unvaccinated people who had been infected months earlier were 5 times more likely to get COVID-19 than fully vaccinated people who didn’t have a prior infection, researchers concluded in a new …

Q&A: COVID-19 booster shots
3 years, 2 months ago

Q&A: COVID-19 booster shots

China Daily  

Can I get a COVID-19 booster shot? COVID-19 booster shots are prioritized for four groups of people who have completed vaccination. Which areas in China have already started offering COVID-19 booster shots? According to incomplete statistics, inoculation campaigns of COVID-19 booster shots have started in 19 provincial-level regions. The annual production capacity has exceeded 8 billion doses, which is more …

Pfizer vaccine highly effective against Covid hospitalisations for six months: Study
3 years, 3 months ago

Pfizer vaccine highly effective against Covid hospitalisations for six months: Study

Deccan Chronicle  

Washington: Two doses of the Pfizer COVID-19 vaccine are 90 per cent effective against hospitalisation from the disease for all variants, including Delta, for at least six months, according to a study published in The Lancet journal on Tuesday. The researchers found that over the study period, effectiveness of the vaccine against all SARS-COV-2 infections declined, falling from 88 per …

Follow SOP if not vaccinated for safety of self and others: doctors
3 years, 3 months ago

Follow SOP if not vaccinated for safety of self and others: doctors

The Hindu  

Universal vaccination does not necessarily mean “all” as there are some critically ill people, including cancer patients, or organ transplant recipients, who are advised to stay away from COVID-19 vaccination. Moreover, “Persons with severe allergic reaction to any component of the vaccine should avoid it,” said Dr. Archana Dhawan Bajaj, director, Nurture IVF clinic. Dr. Akshay Budhraja, pulmonologist, Aakash Healthcare, …

The pace of first Covid-19 vaccine doses is the slowest in two months, CDC data shows, worrying health professionals as flu season approaches
3 years, 3 months ago

The pace of first Covid-19 vaccine doses is the slowest in two months, CDC data shows, worrying health professionals as flu season approaches

CNN  

CNN — The pace of people getting first doses of Covid-19 vaccines is the slowest it has been since July 23, according to data released Wednesday from the US Centers for Disease Control and Prevention. “If somebody comes in wanting the flu vaccine and they haven’t had a Covid vaccine then we can encourage them to get both, or vice-versa,” …

ICMR study shows significant drop in Covid antibodies within 4 months after vaccination
3 years, 3 months ago

ICMR study shows significant drop in Covid antibodies within 4 months after vaccination

India Today  

A study on 614 fully vaccinated health workers at ICMR’s Regional Medical Research Centre in Bhubaneswar showed a significant drop in Covid antibodies within four months after complete vaccination. In this study, which was done when India witnessed a deadly delta variant surge, 308 participants were given two doses of the Covishield vaccine and 306 were given two doses of …

How long does immunity against COVID-19 last after vaccination?
3 years, 3 months ago

How long does immunity against COVID-19 last after vaccination?

The Hindu  

How long does immunity against COVID-19 last after vaccination? Though breakthrough infections – people testing positive for COVID-19 even after vaccination – have been reported in Karnataka, Dr. Mudassir Azeez Khan, Head of Community Medicine at Mysore Medical College and Research Institute, in a presentation at a recent meeting of the newly constituted Mysuru District Technical Experts Committee on COVID-19, …

Study shows 80% COVID-19 antibodies lost six months after second Pfizer vaccine dose; what this means
3 years, 4 months ago

Study shows 80% COVID-19 antibodies lost six months after second Pfizer vaccine dose; what this means

Firstpost  

The results support the Centers for Disease Control and Prevention’s, recommendation for booster shots especially for the elderly due to fading immunity COVID-19 antibodies produced by the Pfizer vaccine decreased more than 80 percent in senior nursing home residents and their caregivers six months after receiving their second dose, a US study has found. “With nursing home residents’ poor initial …

Can COVID infection give more immunity than vaccines? Maybe, but that doesn't mean you should try to catch it
3 years, 4 months ago

Can COVID infection give more immunity than vaccines? Maybe, but that doesn't mean you should try to catch it

Firstpost  

A common reason to remain unvaccinated is the misconception that waiting for natural immunity by choosing infection over-vaccination is an option. The low rate of COVID-related hospitalisations among vaccinated participants would probably be strikingly lower than among non-vaccinated people without prior infection, but this group was not included in the analyses. Several studies show a substantial boost in both antibody …

80 per cent COVID-19 immunity lost in 6 months in some after Pfizer shot: US study
3 years, 4 months ago

80 per cent COVID-19 immunity lost in 6 months in some after Pfizer shot: US study

Deccan Chronicle  

Washington: COVID-19 antibodies produced by the Pfizer vaccine decreased more than 80 per cent in senior nursing home residents and their caregivers six months after receiving their second dose, a US study has found. The research led by Case Western Reserve University and Brown University in the US studied blood samples of 120 nursing home residents and 92 health care …

Antibodies decrease by more than 80% six months after second shot of Pfizer vaccine: US study
3 years, 4 months ago

Antibodies decrease by more than 80% six months after second shot of Pfizer vaccine: US study

India Today  

A US study has found that a decrease in Covid-19 antibodies produced by the Pfizer vaccine was found in senior nursing home residents six months after receiving their second dose. The study was conducted on 120 nursing home residents and 92 health care workers by Case Western Reserve University and Brown University in the US, as reported by PTI. During …

Covid vaccines effective at reducing severe illness, hospitalisation: Lancet study
3 years, 4 months ago

Covid vaccines effective at reducing severe illness, hospitalisation: Lancet study

Deccan Chronicle  

London: People infected with the SARS-CoV-2 virus after receiving one or two COVID-19 vaccine doses have significantly lower chance of severe disease or hospitalisation than unvaccinated individuals, according to a large-scale study published in The Lancet Infectious Diseases journal on Tuesday. Researchers also found that the odds of experiencing long COVID -- illness lasting 28 days or more after a …

Immunity To COVID-19 Could Last Longer Than You'd Think
3 years, 4 months ago

Immunity To COVID-19 Could Last Longer Than You'd Think

NPR  

Immunity To COVID-19 Could Last Longer Than You'd Think Enlarge this image Malaka Gharib/ NPR Malaka Gharib/ NPR All around the world, there seem to be signs that immunity to SARS-CoV-2, the coronavirus that causes the disease COVID-19, doesn't last very long after you're vaccinated. "If you were vaccinated six months ago, your immune system has been training for six …

New Evidence Points To Antibodies As A Reliable Indicator Of Vaccine Protection
3 years, 4 months ago

New Evidence Points To Antibodies As A Reliable Indicator Of Vaccine Protection

NPR  

New Evidence Points To Antibodies As A Reliable Indicator Of Vaccine Protection Enlarge this image toggle caption Britta Pedersen/dpa/picture alliance via Getty Images Britta Pedersen/dpa/picture alliance via Getty Images When Dr. Anthony Fauci spoke recently at a White House briefing about the need for COVID-19 booster shots, buried in his slideshow of charts and data points was a little-noticed scientific …

Moderna’s Covid-19 vaccine protects for at least six months, even against Delta variant, study finds
3 years, 4 months ago

Moderna’s Covid-19 vaccine protects for at least six months, even against Delta variant, study finds

CNN  

CNN — Moderna’s Covid-19 vaccine protects people for at least six months and likely longer – even against new variants, researchers reported Thursday. They tested blood from 24 fully vaccinated volunteers at several time points – four weeks after the first dose of the Moderna vaccine, and then at three points after they were considered fully vaccinated with two doses …

FDA set to clear third COVID-19 shot for people with weak immune systems
3 years, 4 months ago

FDA set to clear third COVID-19 shot for people with weak immune systems

LA Times  

U.S. drug regulators are set to clear a third dose of COVID-19 vaccines for people with weak immune systems as a new study showed the benefits of an extra shot in transplant patients. A third dose of Moderna Inc.’s vaccine significantly raised antibody levels against the coronavirus in transplant patients, according a comparison of an extra shot to a placebo …

SARS-CoV-2 antibodies remain stable, even increase 7 months after infection: Study
3 years, 5 months ago

SARS-CoV-2 antibodies remain stable, even increase 7 months after infection: Study

Deccan Chronicle  

Barcelona: According to a recent study in a cohort of healthcare workers, the levels of IgG antibodies against SARS-CoV-2 Spike protein remained stable, or even increased, seven months after the infection. The results, published in the journal 'Nature Communications', also supported the idea that pre-existing antibodies against common cold coronaviruses could protect against COVID-19. With this goal in mind, the …

Instances of long COVID unlikely in patients re-infected after vaccination, studies continue
3 years, 5 months ago

Instances of long COVID unlikely in patients re-infected after vaccination, studies continue

Firstpost  

Can I get ‘long COVID’ if I’m infected after vaccination? But researchers are also looking at whether those breakthrough cases could lead to long COVID-19, which is when people experience persistent, returning or new symptoms a month or more after an infection. Some estimates indicate about 30 percent of unvaccinated COVID-19 patients develop long-term symptoms, including shortness of breath, fatigue, …

Can I get ‘long COVID’ if I’m infected after vaccination?
3 years, 5 months ago

Can I get ‘long COVID’ if I’m infected after vaccination?

Associated Press  

Can I get ‘long COVID’ if I’m infected after vaccination? It’s unclear, but researchers are studying the chances of long-term symptoms developing in anyone who might get infected after vaccination. But researchers are also looking at whether those breakthrough cases could lead to long COVID-19, which is when people experience persistent, returning or new symptoms a month or more after …

Q&A on vaccine protective effects, booster shot
3 years, 5 months ago

Q&A on vaccine protective effects, booster shot

China Daily  

The National Health Commission has responded to key public concerns about COVID-19 vaccines and disease control policies amid a resurgence of novel coronavirus fueled by the Delta variant in recent weeks. Available data shows that like other vaccines, antibody levels in vaccinated people will go down as time goes by. Six months after full immunization, neutralizing antibodies in people aged …

Q&A on vaccine protective effects, booster shot
3 years, 5 months ago

Q&A on vaccine protective effects, booster shot

China Daily  

The National Health Commission has responded to key public concerns about COVID-19 vaccines and disease control policies amid a resurgence of novel coronavirus fueled by the Delta variant in recent weeks. Available data shows that like other vaccines, antibody levels in vaccinated people will go down as time goes by. Six months after full immunization, neutralizing antibodies in people aged …

Covid-19 Antibodies Last at Least Nine Months After Infection, Study Finds
3 years, 5 months ago

Covid-19 Antibodies Last at Least Nine Months After Infection, Study Finds

News 18  

Antibody levels remain high nine months after infection with SARS-CoV-2, the virus that causes Covid-19, whether symptomatic or asymptomatic, according to a study published on Monday that analysed data from an entire Italian town. The study, published in the journal Nature Communications, found that 98.8 per cent of people infected in February and March showed detectable levels of antibodies in …

You can get COVID-19 after getting the vaccine but you won't get as sick
3 years, 6 months ago

You can get COVID-19 after getting the vaccine but you won't get as sick

Firstpost  

Vaccinated people who develop COVID-19 will likely have a lower viral load than unvaccinated people, meaning they’re less likely to spread the virus. Preliminary data from the United Kingdom shows after your first dose of either Pfizer or AstraZeneca, you’re 33 percent less likely than an unvaccinated person to contract the Delta variant. However, some people won’t have a strong …

Scientifically Speaking | Investigating immunity levels from Covid-19 vaccines
3 years, 6 months ago

Scientifically Speaking | Investigating immunity levels from Covid-19 vaccines

Hindustan Times  

Imagine that it is 2022. Creating a test that estimates the amount of immunity requires having what immunologists call correlates of immune protection — biomarkers that serve as measures of the ability to prevent infection or symptomatic Covid-19. Three different approaches point to neutralising antibody levels correlating with immune protection. The goal here is to compare the two sets of …

Covid-19 antibody test not to be used to evaluate immunity, says doctor
3 years, 6 months ago

Covid-19 antibody test not to be used to evaluate immunity, says doctor

Hindustan Times  

Amid the rising cases of Delta and Delta mutations of the coronavirus, the Hindustan Times spoke to Dr Ravi Shekhar Jha of Fortis Escorts hospital in Faridabad, National Capital Region, to talk about the antibodies test and how one can analyse the results by themselves. A positive antibody test result can be used to help identify people who may have …

6% of cancer patients show little response to the COVID-19 vaccines
3 years, 6 months ago

6% of cancer patients show little response to the COVID-19 vaccines

Daily Mail  

More than five percent of cancer patients exhibit no immune response to the two-shot COVID-19 vaccine, a new study suggests. Researchers say the lack of an immune response is troubling because it could mean some cancer patients who are already vulnerable to the virus may be left without means to protect themselves. A research team has found that 5% of …

Immunity lasts at least a year after infection, gets stronger after jab: Study
3 years, 6 months ago

Immunity lasts at least a year after infection, gets stronger after jab: Study

Hindustan Times  

Antibodies and immune memory among people who contract Covid-19 remains stable up from six months to a year, and they get even better protection when vaccinated, according to a study published on Monday, which also found the body’s defences to have evolved over time to offer protection from mutations. “In the absence of vaccination, antibody reactivity to the receptor binding …

COVID-19 vaccines ARE effective in cancer patients
3 years, 6 months ago

COVID-19 vaccines ARE effective in cancer patients

Daily Mail  

Cancer patients do develop COVID-19 antibodies after being fully vaccinated, a new study suggests. Pictured: Acancer patient receives her vaccine while others talk and laugh in an oncology unit at James Graham Brown Cancer Center in Louisville, Kentucky, April 2021 Cancer patients taking stem cell treatments and other therapies had lower antibody responses, but still saw definite immune system buildup …

Vaccines boost natural immunity against Covid-19: Study
3 years, 7 months ago

Vaccines boost natural immunity against Covid-19: Study

India Today  

Vaccination boosts the natural immunity in people infected with the novel coronavirus so much that they are likely to be protected even from the emerging variants, according to a study. Data from their follow-ups show that, over time, antibodies produced by the immune system's memory B cells got better at neutralising SARS-CoV-2, the virus that causes Covid-19. READ: Second dose …

New hope against Covid-19 pandemic, infection and vaccine may give lifelong immunity
3 years, 7 months ago

New hope against Covid-19 pandemic, infection and vaccine may give lifelong immunity

India Today  

At least two new studies have given hope that people infected with Sars-2 or vaccinated against Covid-19 may have lifelong immunity against the disease. The scientists found that the immune system retained a portion of Sars-2 and immunity cells continued to evolve and get trained to fight the coronavirus infection with time. This also offers hope that the involvement of …

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