Coronavirus | Why people with prior infection still need COVID-19 vaccination
4 years ago

Coronavirus | Why people with prior infection still need COVID-19 vaccination

The Hindu  

As on January 1, nearly 10.3 million SARS-CoV-2 cases have been reported in India, and in all about 50% of people in large urban cities and about 30% of those across India would have already been infected. “A small minority of those with even symptomatic infection do not end up making high levels of antibodies, and another small minority of such naturally infected people do not make long-lasting antibodies. But immune responses in vaccinated people are still being studied, particularly to understand what is protective and how long protection lasts,” says Dr. Kang in an email. “Based on all that we know and do not know at this time, it is advised that even if you have been infected before, you should take the vaccine.” “Both practical considerations as well as lack of precise information on how long immunity lasts after a natural infection necessitates that we do not discriminate against people, says Dr. Ravi. But since we do not know how long protection lasts, what constitutes a measure of protection and the logistics of getting people in priority groups back when the period of protection has waned, I think it would be challenging to establish a system that denies vaccination to those recently infected, even for a limited time,” emphasises Dr. Kang.

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History of this topic

Coronavirus Today: How immune are we?
1 year, 9 months ago

Coronavirus Today: How immune are we?

LA Times  

I’m Karen Kaplan, and it’s Tuesday, March 21. This “cellular immunity,” as scientists call it, deserves the credit for preventing the worst COVID-19 outcomes, even if it doesn’t stop infections from happening in the first place. One tool employed by California’s elected officials to keep the coronavirus in check is a new state law that punishes doctors who spread misinformation …

No need for booster vaccine against coronavirus this spring, experts decide
1 year, 10 months ago

No need for booster vaccine against coronavirus this spring, experts decide

Dutch News  

Coronavirus experts have advised against another round of vaccinations this spring because there is enough immunity in the population from previous vaccines or infections. The advisers will decide later in the year whether there should be another booster round in the autumn, when the peak season for coronavirus infections begins. Doctors should still be able to prescribe a vaccine for …

No need for booster vaccine against coronavirus this spring, experts decide
1 year, 10 months ago

No need for booster vaccine against coronavirus this spring, experts decide

Dutch News  

Coronavirus experts have advised against another round of vaccinations this spring because there is enough immunity in the population from previous vaccines or infections. The advisers will decide later in the year whether there should be another booster round in the autumn, when the peak season for coronavirus infections begins. Doctors should still be able to prescribe a vaccine for …

Repeat covid vaccinations opened to all as postive tests mount
2 years, 2 months ago

Repeat covid vaccinations opened to all as postive tests mount

Dutch News  

Everyone over the age of 12 is now being invited to sign up for another coronavirus vaccination, the health ministry has confirmed. With covid infections once again on the rise, health officials say getting the top-up jabs will help slow the spread of the virus. People aged 40 to 60 can make an appointment via website planjeprik.nl next week, while …

Repeat covid vaccinations opened to all as postive tests mount
2 years, 2 months ago

Repeat covid vaccinations opened to all as postive tests mount

Dutch News  

Everyone over the age of 12 is now being invited to sign up for another coronavirus vaccination, the health ministry has confirmed. With covid infections once again on the rise, health officials say getting the top-up jabs will help slow the spread of the virus. People aged 40 to 60 can make an appointment via website planjeprik.nl next week, while …

Experimental COVID-19 vaccine could outsmart future coronavirus variants
2 years, 3 months ago

Experimental COVID-19 vaccine could outsmart future coronavirus variants

LA Times  

A nurse prepares a syringe of COVID-19 vaccine. “We think of it as a one-time solution for all the COVID variants,” said Haitao Hu, an immunologist at the University of Texas Medical Branch and senior author of a study describing the vaccine in Wednesday’s edition of the journal Science Translational Medicine. The situation has forced scientists to play catch-up with …

More people are catching coronavirus a second time, heightening long COVID risk, experts say
2 years, 5 months ago

More people are catching coronavirus a second time, heightening long COVID risk, experts say

LA Times  

Emerging evidence suggests that catching the coronavirus a second time can heighten long-term health risks, a worrisome development as the circulation of increasingly contagious Omicron subvariants leads to greater numbers of Californians being reinfected. So we’ve got to stay on that front footing and continue fighting this thing.” As it relates specifically to long COVID — a condition in which …

COVID-19 endemic stage two years away, Yale School of Medicine study suggests
2 years, 6 months ago

COVID-19 endemic stage two years away, Yale School of Medicine study suggests

The Hindu  

The COVID-19 disease may reach endemic stage in the U.S. in at least two years, according to a modelling study conducted in rats. To develop a better understanding of when and how COVID-19 might become endemic, researchers at the Yale School of Medicine in the U.S. turned to rats, which, like humans, are also susceptible to coronaviruses. However, the study …

FDA grapples with whether to modify COVID vaccine for fall
2 years, 6 months ago

FDA grapples with whether to modify COVID vaccine for fall

LA Times  

The Food and Drug Administration will debate Tuesday whether it’s time to update COVID vaccine formulas. “This is science at its toughest,” said FDA vaccine chief Dr. Peter Marks, adding that a final decision is expected within days of the advisory panel’s recommendation. In an analysis prepared for Tuesday’s meeting, FDA officials acknowledged targeting last winter’s version of Omicron is …

New oral Covid vaccine can decrease severity, transmission: Study
2 years, 8 months ago

New oral Covid vaccine can decrease severity, transmission: Study

India Today  

An investigational Covid vaccine designed to be administered orally has not only limited the degree of the disease but also decreased its airborne spread during its trial on animals, revealed a study published in the journal, Science Translational Medicine, earlier this week. The research team led by Duke University researcher Stephanie N Langel, a medical instructor in the Department of …

Learning to live with Covid
2 years, 9 months ago

Learning to live with Covid

Hindustan Times  

Are we done with Covid19? The deep psychological impact of Covid came from tsunami-like waves of infections, where many people fell severely ill and faced difficulty in getting adequate healthcare, ultimately leading to many unexpected deaths within short periods. Despite this, the presence of prior immunity sharply reduces the risk of severe disease during infections, even with newer variants. During …

Prior infection, vaccines provide best protection from COVID
2 years, 11 months ago

Prior infection, vaccines provide best protection from COVID

Associated Press  

NEW YORK — A new study in two states that compares coronavirus protection from prior infection and vaccination concludes getting the shots is still the safest way to prevent COVID-19. The study examined infections in New York and California last summer and fall and found people who were both vaccinated and had survived a prior bout of COVID-19 had the …

Prior infection, vaccines provide best protection from COVID
2 years, 11 months ago

Prior infection, vaccines provide best protection from COVID

LA Times  

A nursing home resident receives a COVID-19 booster shot. A new study that compares prior infection and vaccination concludes getting the shots is still the safest way to prevent COVID-19. A new study that compares prior infection and vaccination among people in California and New York concludes that getting the shots is still the safest way to prevent COVID-19. The …

Study suggests past COVID infection may not fend off omicron
3 years, 1 month ago

Study suggests past COVID infection may not fend off omicron

Associated Press  

THE HAGUE, Netherlands — South African scientists are warning that reinfections among people who’ve already battled COVID-19 appear to be more likely with the new omicron variant than with earlier coronavirus mutants. But the timing of the reinfection spike suggests that omicron “demonstrates substantial population-level evidence for evasion of immunity from prior infection,” they wrote. “Previous infection used to protect …

Protection offered by booster shot beats ‘natural immunity,’ study suggests
3 years, 1 month ago

Protection offered by booster shot beats ‘natural immunity,’ study suggests

LA Times  

Michael Stremfel prepares a COVID-19 booster shot at Flintridge Pharmacy in La Cañada Flintridge. A new study finds that people who got a booster shot generated much higher levels of neutralizing antibodies than people who had a coronavirus infection. A small study that’s among the first to track people’s protective antibodies over time found that those who were immunized against …

New wave of coronavirus infections next autumn seems unavoidable, experts say
3 years, 1 month ago

New wave of coronavirus infections next autumn seems unavoidable, experts say

NL Times  

Medical experts told NOS that a spike in coronavirus infections next fall is likely despite an increasing number of people fully vaccinated against Covid-19. Extra measures, such as face masks, to stop the spread of the coronavirus will continue to be part of daily life, the experts said. Yet, the experts said that additional measures to prevent the spread of …

Covid can be transmitted by fully vaccinated people at home: Lancet study
3 years, 2 months ago

Covid can be transmitted by fully vaccinated people at home: Lancet study

Deccan Chronicle  

London: Fully vaccinated people can contract and pass on Delta variant of SARS-CoV-2, the virus that causes COVID-19, in household settings, but at lower rates than unvaccinated people, according to a study published in The Lancet Infectious Diseases journal. Researchers led by Imperial College London, UK, found that vaccinated people clear the infection more quickly, but the peak viral load …

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 …

Covid-19 vaccines may protect against other coronaviruses: Study
3 years, 2 months ago

Covid-19 vaccines may protect against other coronaviruses: Study

India Today  

Covid-19 vaccines and prior coronavirus infections can provide broad immunity against other, similar coronaviruses, according to a study. The study found that plasma from humans who had been vaccinated against SARS-CoV-2 produced antibodies that were cross-reactive, or provided protection, against SARS-CoV-1 and the common cold coronavirus. Mice that had been immunised with Covid-19 vaccines and later were exposed to the …

Some 75% of hospital coronavirus patients are not vaccinated: RIVM
3 years, 2 months ago

Some 75% of hospital coronavirus patients are not vaccinated: RIVM

Dutch News  

Just 17% of patients ending up in hospital intensive care units with coronavirus in September were fully vaccinated, the public health institute RIVM says in a new report. The figures means the ‘likelihood of ending up in an IC ward is 33 times lower for someone who has been fully vaccinated than people who have not had their jabs,’ the …

EXPLAINED: Alpha To Delta, One Shot To Beat Them All. Why Multivariant Jabs Could Be Future Of Covid Fight
3 years, 3 months ago

EXPLAINED: Alpha To Delta, One Shot To Beat Them All. Why Multivariant Jabs Could Be Future Of Covid Fight

News 18  

New and emerging variants of the novel coronavirus are seen as being able to dodge antibodies acquired either through vaccination or prior infection. While updated vaccines and additional shots are an option to counter potential future outbreaks — much like how existing vaccines are updated against the seasonal influenza — a single jab that is targeted towards multiple variants can …

COVID-19 vaccine boosters not 'appropriate' at this stage of pandemic, says study in The Lancet
3 years, 3 months ago

COVID-19 vaccine boosters not 'appropriate' at this stage of pandemic, says study in The Lancet

Firstpost  

The authors noted that across all vaccine types and variants, vaccine efficacy is greater against severe disease than against mild disease. “Taken as a whole, the currently available studies do not provide credible evidence of substantially declining protection against severe disease, which is the primary goal of vaccination,” said lead author Ana-Maria Henao-Restrepo from WHO. “The limited supply of these …

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 …

Coronavirus Booster Shots Can Help Vulnerable, WHO Europe Head Says
3 years, 4 months ago

Coronavirus Booster Shots Can Help Vulnerable, WHO Europe Head Says

News 18  

A coronavirus booster shot is a way to keep the most vulnerable safe and not a luxury robbing people who have yet to have even a single jab, a senior World Health Organization official said on Monday. The comments from WHO Europe head Hans Kluge appeared to be more positive than the U.N. health body’s past assessments of the third …

New Study Reveals Yet Another Benefit Of COVID Vaccines For Pregnant Women
3 years, 4 months ago

New Study Reveals Yet Another Benefit Of COVID Vaccines For Pregnant Women

Huff Post  

Westend61 via Getty Images A new study suggests breastfeeding may pass along COVID-19 antibodies to babies. The breast milk of women who’ve been vaccinated with mRNA COVID-19 vaccines contains a significant supply of antibodies that may help keep babies safe, a new study says. Although there are still many questions about how much protection those antibodies offer infants — and …

COVID-19 vaccines offer benefits even to those previously infected
3 years, 5 months ago

COVID-19 vaccines offer benefits even to those previously infected

Associated Press  

CLAIM: Those who have had COVID-19 have natural immunity against the disease and do not need a vaccine. The CDC study adds to growing laboratory evidence that people who had one bout of COVID-19 get a dramatic boost in virus-fighting immune cells — and a bonus of broader protection against new mutants — when they’re vaccinated. At a recent White …

Coronavirus vaccine does protect against spread: RIVM research
3 years, 5 months ago

Coronavirus vaccine does protect against spread: RIVM research

Dutch News  

Coronavirus vaccines are extremely effective at preventing the spread of the Alpha variant of the disease but the impact may be less on the more infectious Delta variant, according to researchers at Dutch public health institute RIVM. The researchers studied how often people who have been fully vaccinated infected others in their household between February and May, when the Alpha …

Coronavirus vaccine does protect against spread: RIVM research
3 years, 5 months ago

Coronavirus vaccine does protect against spread: RIVM research

Dutch News  

Coronavirus vaccines are extremely effective at preventing the spread of the Alpha variant of the disease but the impact may be less on the more infectious Delta variant, according to researchers at Dutch public health institute RIVM. The researchers studied how often people who have been fully vaccinated infected others in their household between February and May, when the Alpha …

Vaccines work well in reducing transmission of coronavirus: Health Institute
3 years, 5 months ago

Vaccines work well in reducing transmission of coronavirus: Health Institute

NL Times  

The coronavirus vaccines are very effective in reducing the transmission of the coornavirus, scientists at public health institute RIVM discovered in a study that will be published on Thursday, NOS reports. Fully vaccinated people who became infected with the virus infected 11 percent of their housemates. Adjusted for age, vaccination status of the housemates, and the month of the year, …

‘Breakthrough’ COVID-19 cases rising in L.A., but the vaccinated are still protected, data show
3 years, 5 months ago

‘Breakthrough’ COVID-19 cases rising in L.A., but the vaccinated are still protected, data show

LA Times  

Visitors to the Grand Central Market in Los Angeles were mostly masked on Tuesday. Los Angeles County has seen a rise in “breakthrough” coronavirus cases as of late, but data continue to show those who are vaccinated for COVID-19 enjoy vigorous protection — even from the contagious Delta variant — and are far less likely to be hospitalized should they …

Common questions about coronavirus vaccinations
3 years, 5 months ago

Common questions about coronavirus vaccinations

China Daily  

Here are answers to some of the most common questions about COVID-19 vaccines: Should older adults get the vaccine? It is not recommended to terminate pregnancy or delay pregnancy plans due to receiving vaccines, and pregnant women who are vaccinated should stick to routine prenatal visits and checks. For those getting two-dose inactivated vaccines, the first and second doses should …

Pfizer Covid vaccine induces \'good\' immune response against coronavirus variants
3 years, 6 months ago

Pfizer Covid vaccine induces \'good\' immune response against coronavirus variants

Deccan Chronicle  

London: Two doses of the Pfizer COVID-19 vaccine induce a "very good" antibody response against the SARS-CoV-2 variants, according to a study on 180 health care workers in Finland. The immune response was somewhat decreased against the Beta variant first found in South Africa, but the vaccine generated neutralising antibodies that give relatively good protection against the variant. They analysed …

Single vaccine dose enough to shield recovered Covid patient against Delta variant: ICMR study
3 years, 6 months ago

Single vaccine dose enough to shield recovered Covid patient against Delta variant: ICMR study

India Today  

People who have recovered from Covid-19 and received one or both doses of vaccine exhibit higher protection against the Delta variant as compared to individuals who have taken one or two doses of Covishield, a new study by the Indian Council of Medical Research has found. “The findings of the study demonstrated that the breakthrough cases and the Covid-19 recovered …

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 …

People with low immunity may need three or four Covid vaccine doses
3 years, 7 months ago

People with low immunity may need three or four Covid vaccine doses

Dutch News  

People with weakened immune systems may need three or four vaccine doses to give them sufficient protection from coronavirus, experts have said. Bram Goorhuis, co-ordinator of Amsterdam UMC’s coronavirus department, said around 50,000 people in the Netherlands may need further shots of the vaccine to boost their resistance to the virus. ‘It could work if we give them more vaccines.’ …

Covid vaccinations for children 12 and above lowers infection rates: Van Dissel
3 years, 7 months ago

Covid vaccinations for children 12 and above lowers infection rates: Van Dissel

NL Times  

Should children above the age of 12 also be able to get vaccinated against Covid-19, it will help lower the spread of the coronavirus in the upcoming winter season, RIVM director Jaap van Dissel said to the AD. Vaccinating this age group can lower infection rates by around 15 percent, according to Van Dissel. That is a milestone.” The RIVM …

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 …

Can people vaccinated against COVID-19 still spread the coronavirus?
3 years, 7 months ago

Can people vaccinated against COVID-19 still spread the coronavirus?

India TV News  

When the US Centers for Disease Control and Prevention changed its guidelines about mask-wearing on May 13, 2021, plenty of Americans were left a little confused. Vaccines don’t always prevent infection Researchers had hoped to design safe COVID-19 vaccines that would prevent at least half of the people vaccinated from getting COVID-19 symptoms. Since that’s where SARS-CoV-2 makes its entry, …

No evidence COVID-19 vaccines create new virus variants
3 years, 7 months ago

No evidence COVID-19 vaccines create new virus variants

Associated Press  

CLAIM: The variants of the coronavirus that have been found in the global population were created by COVID-19 vaccines, which made antibodies that forced the virus to evolve. “Bombshell: Nobel Prize Winner Reveals - Covid Vaccine is ‘Creating Variants,’” reads the headline of the article, which has been shared more than 6,000 times on Facebook since May 18. The article …

Covid- 19 | Only way to decrease variants of COVID-19 is by increasing vaccination, says Dr Gagandeep Kang
3 years, 7 months ago

Covid- 19 | Only way to decrease variants of COVID-19 is by increasing vaccination, says Dr Gagandeep Kang

The Hindu  

Stressing that the only way to decrease variants of COVID-19 is by increasing vaccination, prominent clinical scientist Gagandeep Kang said massive inoculation being a mistake is a topic brought up with "pseudo-scientific messy incorrect immunology". "And he said there will be much stronger infection by variants in vaccinated individuals due to antibody dependent enhancement, massive vaccination is an enormous error, …

Increasing vaccination only way to decrease variants of Covid: Scientist
3 years, 7 months ago

Increasing vaccination only way to decrease variants of Covid: Scientist

India TV News  

Stressing that the only way to decrease variants of COVID-19 is by increasing vaccination, prominent clinical scientist Gagandeep Kang said massive inoculation being a mistake is a topic brought up with "pseudo-scientific messy incorrect immunology". "And he said there will be much stronger infection by variants in vaccinated individuals due to antibody dependent enhancement, massive vaccination is an enormous error, …

Studies of hospital workers suggest COVID-19 vaccines really do prevent coronavirus infections
3 years, 8 months ago

Studies of hospital workers suggest COVID-19 vaccines really do prevent coronavirus infections

LA Times  

Medical student Liesl Eibschutz loads a syringe with a dose of COVID-19 vaccine made by Pfizer and BioNTech. Both studies compare coronavirus infection rates among vaccinated and unvaccinated people who work at a single medical center. Over the three months, 51 people tested positive for a coronavirus infection after receiving their first dose of vaccine, and 29 of them never …

Single COVID-19 vaccine dose boosts protection in previously infected: study
3 years, 8 months ago

Single COVID-19 vaccine dose boosts protection in previously infected: study

The Hindu  

A single dose of COVID-19 vaccine boosts protection against SARS-CoV-2 coronavirus variants, but only in those previously infected with the disease, according to a study. 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. "Our findings show that …

Common questions about coronavirus vaccinations
3 years, 8 months ago

Common questions about coronavirus vaccinations

China Daily  

Here are answers to some of the most common questions about COVID-19 vaccines: Should older adults get the vaccine? It is not recommended to terminate pregnancy or delay pregnancy plans due to receiving vaccines, and pregnant women who are vaccinated should stick to routine prenatal visits and checks. For those getting two-dose inactivated vaccines, the first and second doses should …

Common questions about coronavirus vaccinations
3 years, 8 months ago

Common questions about coronavirus vaccinations

China Daily  

Here are answers to some of the most common questions about COVID-19 vaccines: Should older adults get the vaccine? It is not recommended to terminate pregnancy or delay pregnancy plans due to receiving vaccines, and pregnant women who are vaccinated should stick to routine prenatal visits and checks. For those getting two-dose inactivated vaccines, the first and second doses should …

Common questions about coronavirus vaccinations
3 years, 8 months ago

Common questions about coronavirus vaccinations

China Daily  

Here are answers to some of the most common questions about COVID-19 vaccines: Should older adults get the vaccine? It is not recommended to terminate pregnancy or delay pregnancy plans due to receiving vaccines, and pregnant women who are vaccinated should stick to routine prenatal visits and checks. For those getting two-dose inactivated vaccines, the first and second doses should …

Common questions about coronavirus vaccinations
3 years, 8 months ago

Common questions about coronavirus vaccinations

China Daily  

Here are answers to some of the most common questions about COVID-19 vaccines: Should older adults get the vaccine? It is not recommended to terminate pregnancy or delay pregnancy plans due to receiving vaccines, and pregnant women who are vaccinated should stick to routine prenatal visits and checks. For those getting two-dose inactivated vaccines, the first and second doses should …

Coronavirus | Vaccines aimed at curbing severe COVID-19: experts
3 years, 9 months ago

Coronavirus | Vaccines aimed at curbing severe COVID-19: experts

The Hindu  

COVID-19 vaccines are not infection-preventing but disease-modifier vaccines, said Samiran Panda, member of the government’s National Expert Group on Vaccine Administration for Covid-19. However the lack of published papers about duration of protection of vaccines is not to be interpreted as that vaccine protection is short.” An effective vaccine lowers the chance of getting the disease if the person encounters …

Vaccinated people could get COVID-19 but it's unclear whether they can spread the virus, scientists say
3 years, 9 months ago

Vaccinated people could get COVID-19 but it's unclear whether they can spread the virus, scientists say

Firstpost  

The Centers for Disease Control and Prevention on Thursday walked back controversial comments made by its director, Dr Rochelle Walensky, suggesting that people who are vaccinated against the coronavirus never become infected or transmit the virus to others. “It’s possible that some people who are fully vaccinated could get COVID-19. The data suggest that “it’s much harder for vaccinated people …

Scientists fear emergence of vaccine-evading Covid mutations within next year
3 years, 9 months ago

Scientists fear emergence of vaccine-evading Covid mutations within next year

The Independent  

Sign up for our free Health Check email to receive exclusive analysis on the week in health Get our free Health Check email Get our free Health Check email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy New coronavirus mutations could emerge within the next year that significantly …

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