Budapest Post

Cum Deo pro Patria et Libertate
Budapest, Europe and world news

AstraZeneca Covid Vaccine Protection Wanes After 3 Months: Lancet Study

AstraZeneca Covid Vaccine Protection Wanes After 3 Months: Lancet Study

The findings drawn from datasets in Brazil and Scotland suggest that booster programmes are needed to help maintain protection from severe disease in those vaccinated with AstraZeneca, known as Covishield in India.
The protection offered by the Oxford-Astra Zeneca COVID-19 vaccine declines after three months of receiving two doses of the preventive, according to a study published in The Lancet journal.

The findings drawn from datasets in Brazil and Scotland suggest that booster programmes are needed to help maintain protection from severe disease in those vaccinated with AstraZeneca, known as Covishield in India.

The researchers analysed data for two million people in Scotland and 42 million people in Brazil who had been vaccinated with the AstraZeneca vaccine.

In Scotland, when compared with two weeks after receiving a second dose, there was approximately a five-fold increase in the chance of being hospitalised or dying from COVID-19 nearly five months after being double vaccinated, the researchers said.

The decline in effectiveness begins to first appear at around three months, when the risk of hospitalisation and death is double that of two weeks after the second dose, they said.

The researchers from Scotland and Brazil found that the risk of hospitalisation and death increases threefold just short of four months after the second vaccine dose. Similar numbers were seen for Brazil, they said.

"Vaccines have been a key tool in fighting the pandemic, but waning in their effectiveness has been a concern for a while," said Professor Aziz Sheikh, from the University of Edinburgh, UK.

"By identifying when waning first starts to occur in the Oxford-AstraZeneca vaccine, it should be possible for governments to design booster programmes that can ensure maximum protection is maintained," Sheikh said.

The team was able to compare data between Scotland and Brazil as they had a similar interval between doses - 12 weeks - and initial prioritisation of who was vaccinated - people at highest risk of severe disease and healthcare workers.

The dominant variant was different in each country during the study period -- Delta in Scotland and Gamma in Brazil.

This means the decline in effectiveness is likely because of vaccine waning and the impact of variants, according to the researchers.

The study also estimated vaccine effectiveness at similar fortnightly intervals by comparing outcomes of people who have been jabbed with those who are not vaccinated.

However, the experts warned that these figures should be treated with caution because it is becoming harder to compare non-vaccinated people to those vaccinated with similar characteristics, particularly among older age groups where so many people are now vaccinated.

"Our analyses of national datasets from both Scotland and Brazil suggest that there is considerable waning of effectiveness for the Oxford AstraZeneca vaccine, with protection against severe COVID-19 falling over time," said Professor Srinivasa Vittal Katikireddi from the University of Glasgow in the UK.

"Our work highlights the importance of getting boosters, even if you've had two doses of the Oxford AstraZeneca vaccine, as soon as you are able to," Srinivasa Katikiredd added.
Comments

Oh ya 2 year ago
Yup 3 months and its a flop and they want you to get a booster that will be the same thing. The vax fools are waiting to get there daily shot that should be approved shortly.
mike 2 year ago
Why do you talk about AstraZeneca? I didn't do that? By the way, that vaccine is out. You talk about the past.
harleyrider 2 year ago
AstraZeneca Covid Vaccine is NOT mRNA based. Get your facts straight.
mike 2 year ago
RNA "vaccines" poison the world

Newsletter

Related Articles

0:00
0:00
Close
Unelected PM of the UK holds an emergency meeting because a candidate got voted in… which he says is a threat to democracy…
Farmers break through police barriers in Brussels.
Ukraine Arrests Father-Son Duo In Lockbit Cybercrime Bust
US Offers $15 Million For Info On Leaders Of Cybercrime Group Lockbit
Apple warns against drying iPhones with rice
Alexei Navalny: UK sanctions Russian prison chiefs after activist's death
German economy is in 'troubled waters' - ministry
In a recent High Court hearing, the U.S. argued that Julian Assange endangered lives by releasing classified information.
Tucker Carlson says Boris Johnson wants "a million dollars, in Bitcoin or cash, from Tucker Carlson to talk about Ukraine.
Russia is rebuilding capacity to destabilize European countries, new UK report warns
EU Commission wants anti-drone defenses at Brussels HQ
Von der Leyen’s 2nd-term pitch: More military might, less climate talk
EU Investigates TikTok for Child Safety Concerns
EU Launches Probe Into TikTok Over Child Protection Under Digital Content Law
EU and UK Announce Joint Effort on Migration
Ministers Confirm Proposal to Prohibit Mobile Phone Usage in English Schools
Avdiivka - Symbol Of Ukrainian Resistance Now In Control Of Russian Troops
"Historic Step": Zelensky Signs Security Pact With Germany
"Historic Step": Zelensky Signs Security Pact With Germany
Russian opposition leader Alexey Navalny has died at the Arctic prison colony
Tucker Carlson grocery shopping in Russia. This is so interesting.
France and Germany Struggle to Align on European Defense Strategy
‘A lot higher than we expected’: Russian arms production worries Europe’s war planners
Greece Legalizes Same-Sex Marriage and Adoption Rights
Russia "Very Close" To Creating Cancer Vaccines, Says Vladimir Putin
Hungarian Foreign Minister: Europeans will lose Europe, the Union's policy must change drastically
Microsoft says it caught hackers from China, Russia and Iran using its AI tools
US Rejects Putin's Ceasefire Offer in Ukraine
The Dangers of Wildfire Smoke and Self-Protection Strategies
A Londoner has been arrested for expressing his Christian beliefs.
Chinese Women Favor AI Boyfriends Over Humans
Greece must address role in migrant vessel disaster that killed 600: Amnesty
Google pledges 25 million euros to boost AI skills in Europe
Hungarian President Katalin Novák Steps Down Amid Pardon Controversy
Activist crashes Hillary Clinton's speech, calls her a 'war criminal.'
In El Salvador, the 'Trump of Latin America' stuns the world with a speech slamming woke policing after winning a landslide election
Trudeau reacts to Putin's mention of Canadian Parliament applauding a former Ukrainian Nazi in his interview with Tucker Carlson.
The Spanish police blocked the farmers protest. So the farmers went out and moved the police car out of the way.
Volodymyr Zelenskiy fires top Ukraine army commander
Tucker Carlson's interview with Vladimir Putin raises EU concerns
Finnish Airline, Finnair, is voluntarily weighing passengers to better estimate flight cargo weight
Russia's Economy Expands by 3.6% Due to Increased Military Spending
Ukraine MPs Vote To Permit Use Of Dead Soldiers' Sperm
German Princess Becomes First Aristocrat To Pose Naked On Playboy Cover
UK’s King Charles III diagnosed with cancer
EU's Ursula von der Leyen Confronts Farmer Protests Amid Land Policy Debates
Distinguishing Between Harmful AI Media and Positive AI-Generated Content: A Crucial Challenge for the EU
Tucker Carlson explains why he interviewed Putin
Dutch farmers are still protesting in the Netherlands against the government, following the World Economic Forum's call for 'owning nothing.'
Hungarian Prime Minister Viktor Orbán stands up for European farmers and says, 'Brussels is suffocating European farmers.
×