A girl of 5 is shown a syringe by a vaccination assistant before her first coronavirus vaccination in Germany. AP
A girl of 5 is shown a syringe by a vaccination assistant before her first coronavirus vaccination in Germany. AP
A girl of 5 is shown a syringe by a vaccination assistant before her first coronavirus vaccination in Germany. AP
A girl of 5 is shown a syringe by a vaccination assistant before her first coronavirus vaccination in Germany. AP

Scientists uncover why children suffer less severely from Covid


Tim Stickings
  • English
  • Arabic

Children’s immune systems are better at recognising the coronavirus as a threat, helping to explain why they suffer less severely from Covid-19, research has found.

Scientists said children’s airways produced strong antiviral proteins that stopped the virus in its tracks without having encountered it before.

Adults have a more adaptive immune system that is trained to recognise threats it has seen before – which is the principle behind vaccination.

But children have a stronger innate response that recognises dangers automatically, researchers said.

“The innate immune system of children is more flexible and better able to respond to new threats,” said Dr Masahiro Yoshida, one of the authors of the University College London study.

He described a very quick immune response in children that “helps to explain why they are less severely affected by Covid-19”.

Children can still spread the virus, and are recommended for vaccines in many countries. School-age children had the highest rates of infection in the UK in the week ending on December 17.

But rates of serious illness and death are very low – fewer than 100 people under 15 have died from Covid-19 in England. Scientists said this was not previously fully understood.

The UCL study explained that the airway proteins, known as interferons, give a signal to nearby cells to tighten their defences against an intruding virus.

Adults produce them too, but they were found to be stronger, more numerous and generated more quickly in children.

Interferons have been studied as a possible therapy for Covid-19, while researchers say a nasal swab could be used to measure the immune response in adults.

The findings are based on blood samples from 78 people, including children and adults infected by the virus.

This produced a data set of more than 650,000 individual cells that revealed dozens of cell types in the airways and blood – including some never previously described.

In addition, children were less prone to a dangerous effect in which the immune system works against the body by attacking infected cells. This is known as a cytotoxic response.

“Once the virus has spread to several areas of the body, organ damage can be caused by the immune system trying and failing to control the infection,” said Dr Marko Nikolic, another UCL study author.

“Our study shows that not only do children respond better initially, if the virus does enter the blood the cytotoxic response is less forceful.”

The research from UCL, the Wellcome Sanger Institute and their collaborators is published in Nature.

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The years Ramadan fell in May

1987

1954

1921

1888

THE BIO

Favourite book: ‘Purpose Driven Life’ by Rick Warren

Favourite travel destination: Switzerland

Hobbies: Travelling and following motivational speeches and speakers

Favourite place in UAE: Dubai Museum

South Africa v India schedule

Tests: 1st Test Jan 5-9, Cape Town; 2nd Test Jan 13-17, Centurion; 3rd Test Jan 24-28, Johannesburg

ODIs: 1st ODI Feb 1, Durban; 2nd ODI Feb 4, Centurion; 3rd ODI Feb 7, Cape Town; 4th ODI Feb 10, Johannesburg; 5th ODI Feb 13, Port Elizabeth; 6th ODI Feb 16, Centurion

T20Is: 1st T20I Feb 18, Johannesburg; 2nd T20I Feb 21, Centurion; 3rd T20I Feb 24, Cape Town

Jetour T1 specs

Engine: 2-litre turbocharged

Power: 254hp

Torque: 390Nm

Price: From Dh126,000

Available: Now

The story in numbers

18

This is how many recognised sects Lebanon is home to, along with about four million citizens

450,000

More than this many Palestinian refugees are registered with UNRWA in Lebanon, with about 45 per cent of them living in the country’s 12 refugee camps

1.5 million

There are just under 1 million Syrian refugees registered with the UN, although the government puts the figure upwards of 1.5m

73

The percentage of stateless people in Lebanon, who are not of Palestinian origin, born to a Lebanese mother, according to a 2012-2013 study by human rights organisation Frontiers Ruwad Association

18,000

The number of marriages recorded between Lebanese women and foreigners between the years 1995 and 2008, according to a 2009 study backed by the UN Development Programme

77,400

The number of people believed to be affected by the current nationality law, according to the 2009 UN study

4,926

This is how many Lebanese-Palestinian households there were in Lebanon in 2016, according to a census by the Lebanese-Palestinian dialogue committee

Company profile

Date started: 2015

Founder: John Tsioris and Ioanna Angelidaki

Based: Dubai

Sector: Online grocery delivery

Staff: 200

Funding: Undisclosed, but investors include the Jabbar Internet Group and Venture Friends

Company%20profile
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The burning issue

The internal combustion engine is facing a watershed moment – major manufacturer Volvo is to stop producing petroleum-powered vehicles by 2021 and countries in Europe, including the UK, have vowed to ban their sale before 2040. The National takes a look at the story of one of the most successful technologies of the last 100 years and how it has impacted life in the UAE. 

Read part four: an affection for classic cars lives on

Read part three: the age of the electric vehicle begins

Read part two: how climate change drove the race for an alternative 

RESULT

West Brom 2 Liverpool 2
West Brom: Livermore (79'), Rondón (88' ) 
Liverpool: Ings (4'), Salah (72') 

The five pillars of Islam

1. Fasting

2. Prayer

3. Hajj

4. Shahada

5. Zakat 

Multitasking pays off for money goals

Tackling money goals one at a time cost financial literacy expert Barbara O'Neill at least $1 million.

That's how much Ms O'Neill, a distinguished professor at Rutgers University in the US, figures she lost by starting saving for retirement only after she had created an emergency fund, bought a car with cash and purchased a home.

"I tell students that eventually, 30 years later, I hit the million-dollar mark, but I could've had $2 million," Ms O'Neill says.

Too often, financial experts say, people want to attack their money goals one at a time: "As soon as I pay off my credit card debt, then I'll start saving for a home," or, "As soon as I pay off my student loan debt, then I'll start saving for retirement"."

People do not realise how costly the words "as soon as" can be. Paying off debt is a worthy goal, but it should not come at the expense of other goals, particularly saving for retirement. The sooner money is contributed, the longer it can benefit from compounded returns. Compounded returns are when your investment gains earn their own gains, which can dramatically increase your balances over time.

"By putting off saving for the future, you are really inhibiting yourself from benefiting from that wonderful magic," says Kimberly Zimmerman Rand , an accredited financial counsellor and principal at Dragonfly Financial Solutions in Boston. "If you can start saving today ... you are going to have a lot more five years from now than if you decide to pay off debt for three years and start saving in year four."

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Range: 400km

Power: 134bhp

Torque: 175Nm

Price: From Dh98,800

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Volvo ES90 Specs

Engine: Electric single motor (96kW), twin motor (106kW) and twin motor performance (106kW)

Power: 333hp, 449hp, 680hp

Torque: 480Nm, 670Nm, 870Nm

On sale: Later in 2025 or early 2026, depending on region

Price: Exact regional pricing TBA

Benefits of first-time home buyers' scheme
  • Priority access to new homes from participating developers
  • Discounts on sales price of off-plan units
  • Flexible payment plans from developers
  • Mortgages with better interest rates, faster approval times and reduced fees
  • DLD registration fee can be paid through banks or credit cards at zero interest rates
Who are the Sacklers?

The Sackler family is a transatlantic dynasty that owns Purdue Pharma, which manufactures and markets OxyContin, one of the drugs at the centre of America's opioids crisis. The family is well known for their generous philanthropy towards the world's top cultural institutions, including Guggenheim Museum, the National Portrait Gallery, Tate in Britain, Yale University and the Serpentine Gallery, to name a few. Two branches of the family control Purdue Pharma.

Isaac Sackler and Sophie Greenberg were Jewish immigrants who arrived in New York before the First World War. They had three sons. The first, Arthur, died before OxyContin was invented. The second, Mortimer, who died aged 93 in 2010, was a former chief executive of Purdue Pharma. The third, Raymond, died aged 97 in 2017 and was also a former chief executive of Purdue Pharma. 

It was Arthur, a psychiatrist and pharmaceutical marketeer, who started the family business dynasty. He and his brothers bought a small company called Purdue Frederick; among their first products were laxatives and prescription earwax remover.

Arthur's branch of the family has not been involved in Purdue for many years and his daughter, Elizabeth, has spoken out against it, saying the company's role in America's drugs crisis is "morally abhorrent".

The lawsuits that were brought by the attorneys general of New York and Massachussetts named eight Sacklers. This includes Kathe, Mortimer, Richard, Jonathan and Ilene Sackler Lefcourt, who are all the children of either Mortimer or Raymond. Then there's Theresa Sackler, who is Mortimer senior's widow; Beverly, Raymond's widow; and David Sackler, Raymond's grandson.

Members of the Sackler family are rarely seen in public.

Like a Fading Shadow

Antonio Muñoz Molina

Translated from the Spanish by Camilo A. Ramirez

Tuskar Rock Press (pp. 310)

Dhadak

Director: Shashank Khaitan

Starring: Janhvi Kapoor, Ishaan Khattar, Ashutosh Rana

Stars: 3

The years Ramadan fell in May

1987

1954

1921

1888

The five pillars of Islam

1. Fasting 

2. Prayer 

3. Hajj 

4. Shahada 

5. Zakat 

Company%20profile
%3Cp%3E%3Cstrong%3EName%3A%20%3C%2Fstrong%3EEmonovo%20(previously%20Marj3)%0D%3Cbr%3E%3Cstrong%3EBased%3A%20%3C%2Fstrong%3ECairo%0D%3Cbr%3E%3Cstrong%3ELaunch%20year%3A%20%3C%2Fstrong%3E2016%0D%3Cbr%3E%3Cstrong%3ENumber%20of%20employees%3A%20%3C%2Fstrong%3E12%0D%3Cbr%3E%3Cstrong%3ESector%3A%20%3C%2Fstrong%3Eeducation%20technology%0D%3Cbr%3E%3Cstrong%3EFunding%3A%20%3C%2Fstrong%3Ethree%20rounds%2C%20undisclosed%20amount%3C%2Fp%3E%0A
COMPANY PROFILE

Name: Lamsa

Founder: Badr Ward

Launched: 2014

Employees: 60

Based: Abu Dhabi

Sector: EdTech

Funding to date: $15 million

Updated: December 22, 2021, 10:16 AM`