Sinopharm vaccine may be less vulnerable to Covid-19 variants, say immunologists


Gillian Duncan
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Latest: China says its vaccines may have weaker antibody response against new strains

Inactivated vaccines may be more effective against fighting new mutated strains of the coronavirus, according to a top immunologist.

Such vaccines, including the UAE-approved Sinopharm, use a “dead” version of the whole virus, offering protection against multiple areas.

That means they may hold up better against variants.

Luke O’Neill, professor of biochemistry in the School of Biochemistry and Immunology at Trinity College Dublin, said because inactivated vaccines are based on the whole virus, the immune system will have “lots of weapons against lots of parts of the vaccine”.

Several vaccines have now been approved against Covid-19.

Most of them, including Pfizer-BioNTech, Moderna, Oxford-AstraZeneca and Russia’s Sputnik V, target the spike protein on the surface of the coronavirus, which the virus uses to enter cells.

Covid-19 variants which have emerged in recent months in the UK, South Africa and Brazil include a number of mutations in the spike, which experts said may render the vaccines less effective.

"The other vaccines are just against the spike protein so if that mutates and escapes the immune system, the vaccines may not work as well," Prof O'Neill told The National

“The whole virus vaccines are very likely to work against any variant.”

He said it was not yet clear how much the spike vaccines will be affected by variants.

“And there are signs that the Pfizer vaccine might still generate antibodies against the UK variant, at least,” he said.

“Also there might still be a good T cell response with the Pfizer and other vaccines.”

Sinopharm and other inactivated vaccines are also expected to generate a T-cell response, he said.

At the weekend, White House health advisor Dr Anthony Fauci warned the Pfizer and other spike protein vaccines may not be as effective in guarding against new variants.

That is a concern as two that have emerged in the UK and South Africa are believed to be more transmissible and could even have higher mortality rates.

Early research, which has yet to be peer reviewed, backed Dr Fauci’s claim.

The study, published on bioRxiv, a website on which authors can share early findings, said the variant identified in South Africa, known as 501Y.V2, can evade antibodies provided by treatments. It may reduce the efficacy of some of the current vaccines, it said.

“Furthermore, 501Y.V2 shows substantial or complete escape from neutralising antibodies in Covid-19 convalescent plasma,” researchers with South Africa’s National Institute for Communicable Diseases wrote.

Their findings highlight the prospect of reinfection “and may foreshadow reduced efficacy of current spike-based vaccines”, they wrote.

The Pfizer-BioNTech, Moderna, Oxford-AstraZeneca and Russia’s Sputnik V vaccines issue instructions to the body to make its own version of the spike, which triggers antibodies against the virus.

But the spike is just one protein that forms the overall structure of the virus. There are in fact four: the spike, envelope (E), membrane (M) and nucleocapsid (N).

Inactivated vaccines likely target all four areas, researchers said.

Researchers have discovered that people who have been infected with SARS-Cov-2 make more antibodies against the N protein than the spike.

Their role in protecting people from infection is not fully understood, but they are likely to play a role and should be targeted by later generations of vaccines, they said.

"Future vaccines will probably focus on more than just the spike protein of Sars-CoV-2, and the N protein is a promising target to add to the current strategies being considered," Dr Sarah Caddy, an immunologist at the University of Cambridge, wrote in The Conversation.

Speaking on Irish radio last week, Prof O’Neill said he was not overly concerned by the new variants, but they require close monitoring.

“The worry would be if there are extra variants, another strain arises,” he told Radio One.

Many of the vaccines in development target the virus spike, but not all.

There are three inactivated vaccines in China in phase 3 trials, and another in India.

Several are in phase 1 and 2 phase trials, including another “worth watching”, said Prof O’Neill, by Valneva, a European manufacturer, which will produce the inactivated vaccine in Scotland.

It is currently undergoing a trial in the UK, which has ordered 60 million doses.

FIGHT CARD

Bantamweight Hamza Bougamza (MAR) v Jalal Al Daaja (JOR)

Catchweight 67kg Mohamed El Mesbahi (MAR) v Fouad Mesdari (ALG)

Lighweight Abdullah Mohammed Ali (UAE) v Abdelhak Amhidra (MAR)

Catchweight 73kg Mostafa Ibrahim Radi (PAL) v Yazid Chouchane (ALG)

Middleweight Yousri Belgaroui (TUN) v Badreddine Diani (MAR)

Catchweight 78kg Rashed Dawood (UAE) v Adnan Bushashy (ALG)

Middleweight Sallaheddine Dekhissi (MAR) v Abdel Emam (EGY)

Catchweight 65kg Rachid Hazoume (MAR) v Yanis Ghemmouri (ALG)

Lighweight Mohammed Yahya (UAE) v Azouz Anwar (EGY)

Catchweight 79kg Omar Hussein (PAL) v Souhil Tahiri (ALG)

Middleweight Tarek Suleiman (SYR) v Laid Zerhouni (ALG)

UAE currency: the story behind the money in your pockets
UPI facts

More than 2.2 million Indian tourists arrived in UAE in 2023
More than 3.5 million Indians reside in UAE
Indian tourists can make purchases in UAE using rupee accounts in India through QR-code-based UPI real-time payment systems
Indian residents in UAE can use their non-resident NRO and NRE accounts held in Indian banks linked to a UAE mobile number for UPI transactions

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  • 400m Olympic running track
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  • Spaces for historical and cultural exploration
  • An elevated football field that doubles as a helipad
  • Specialist robotics and science laboratories
  • AR and VR-enabled learning centres
  • Disruption Lab and Research Centre for developing entrepreneurial skills
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F1 The Movie

Starring: Brad Pitt, Damson Idris, Kerry Condon, Javier Bardem

Director: Joseph Kosinski

Rating: 4/5

Temple numbers

Expected completion: 2022

Height: 24 meters

Ground floor banquet hall: 370 square metres to accommodate about 750 people

Ground floor multipurpose hall: 92 square metres for up to 200 people

First floor main Prayer Hall: 465 square metres to hold 1,500 people at a time

First floor terrace areas: 2,30 square metres  

Temple will be spread over 6,900 square metres

Structure includes two basements, ground and first floor 

What are NFTs?

Are non-fungible tokens a currency, asset, or a licensing instrument? Arnab Das, global market strategist EMEA at Invesco, says they are mix of all of three.

You can buy, hold and use NFTs just like US dollars and Bitcoins. “They can appreciate in value and even produce cash flows.”

However, while money is fungible, NFTs are not. “One Bitcoin, dollar, euro or dirham is largely indistinguishable from the next. Nothing ties a dollar bill to a particular owner, for example. Nor does it tie you to to any goods, services or assets you bought with that currency. In contrast, NFTs confer specific ownership,” Mr Das says.

This makes NFTs closer to a piece of intellectual property such as a work of art or licence, as you can claim royalties or profit by exchanging it at a higher value later, Mr Das says. “They could provide a sustainable income stream.”

This income will depend on future demand and use, which makes NFTs difficult to value. “However, there is a credible use case for many forms of intellectual property, notably art, songs, videos,” Mr Das says.

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  • Place a sun reflector in your windshield when not driving
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What can victims do?

Always use only regulated platforms

Stop all transactions and communication on suspicion

Save all evidence (screenshots, chat logs, transaction IDs)

Report to local authorities

Warn others to prevent further harm

Courtesy: Crystal Intelligence

WITHIN%20SAND
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10 tips for entry-level job seekers
  • Have an up-to-date, professional LinkedIn profile. If you don’t have a LinkedIn account, set one up today. Avoid poor-quality profile pictures with distracting backgrounds. Include a professional summary and begin to grow your network.
  • Keep track of the job trends in your sector through the news. Apply for job alerts at your dream organisations and the types of jobs you want – LinkedIn uses AI to share similar relevant jobs based on your selections.
  • Double check that you’ve highlighted relevant skills on your resume and LinkedIn profile.
  • For most entry-level jobs, your resume will first be filtered by an applicant tracking system for keywords. Look closely at the description of the job you are applying for and mirror the language as much as possible (while being honest and accurate about your skills and experience).
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  • Go online and look for details on job specifications for your target position. Make a list of skills required and set yourself some learning goals to tick off all the necessary skills one by one.
  • Don’t be afraid to reach outside your immediate friends and family to other acquaintances and let them know you are looking for new opportunities.
  • Make sure you’ve set your LinkedIn profile to signal that you are “open to opportunities”. Also be sure to use LinkedIn to search for people who are still actively hiring by searching for those that have the headline “I’m hiring” or “We’re hiring” in their profile.
  • Prepare for online interviews using mock interview tools. Even before landing interviews, it can be useful to start practising.
  • Be professional and patient. Always be professional with whoever you are interacting with throughout your search process, this will be remembered. You need to be patient, dedicated and not give up on your search. Candidates need to make sure they are following up appropriately for roles they have applied.

Arda Atalay, head of Mena private sector at LinkedIn Talent Solutions, Rudy Bier, managing partner of Kinetic Business Solutions and Ben Kinerman Daltrey, co-founder of KinFitz

Maestro
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COMPANY%20PROFILE
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ELIO

Starring: Yonas Kibreab, Zoe Saldana, Brad Garrett

Directors: Madeline Sharafian, Domee Shi, Adrian Molina

Rating: 4/5

Tearful appearance

Chancellor Rachel Reeves set markets on edge as she appeared visibly distraught in parliament on Wednesday. 

Legislative setbacks for the government have blown a new hole in the budgetary calculations at a time when the deficit is stubbornly large and the economy is struggling to grow. 

She appeared with Keir Starmer on Thursday and the pair embraced, but he had failed to give her his backing as she cried a day earlier.

A spokesman said her upset demeanour was due to a personal matter.

From exhibitions to the battlefield

In 2016, the Shaded Dome was awarded with the 'De Vernufteling' people's choice award, an annual prize by the Dutch Association of Consulting Engineers and the Royal Netherlands Society of Engineers for the most innovative project by a Dutch engineering firm.

It was assigned by the Dutch Ministry of Defence to modify the Shaded Dome to make it suitable for ballistic protection. Royal HaskoningDHV, one of the companies which designed the dome, is an independent international engineering and project management consultancy, leading the way in sustainable development and innovation.

It is driving positive change through innovation and technology, helping use resources more efficiently.

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MATCH INFO

Champions League quarter-final, first leg

Ajax v Juventus, Wednesday, 11pm (UAE)

Match on BeIN Sports

Spider-Man: No Way Home

Director: Jon Watts

Stars: Tom Holland, Zendaya, Jacob Batalon 

Rating:*****

Sole survivors
  • Cecelia Crocker was on board Northwest Airlines Flight 255 in 1987 when it crashed in Detroit, killing 154 people, including her parents and brother. The plane had hit a light pole on take off
  • George Lamson Jr, from Minnesota, was on a Galaxy Airlines flight that crashed in Reno in 1985, killing 68 people. His entire seat was launched out of the plane
  • Bahia Bakari, then 12, survived when a Yemenia Airways flight crashed near the Comoros in 2009, killing 152. She was found clinging to wreckage after floating in the ocean for 13 hours.
  • Jim Polehinke was the co-pilot and sole survivor of a 2006 Comair flight that crashed in Lexington, Kentucky, killing 49.