Oregon strain: what we know about the latest mutant Covid-19 variant


Daniel Bardsley
  • English
  • Arabic

Officials in the US state of Oregon have identified a new mutant form of the highly transmissible coronavirus variant first found in the UK.

The new type has an important mutation in its spike protein that is thought to make the virus better able to evade the protection given by vaccines or previous infection.

Known as E484K, the mutation is also found in the previously identified South African and Brazilian coronavirus variants that some studies indicate are more difficult for vaccines to combat. It is also present in a New York variant.

US media are reporting that the new, mutated form of the UK variant was found among 13 samples collected from a Covid-19 outbreak in “a healthcare setting”.

We didn't import this from elsewhere in the world – it occurred spontaneously

Of the samples, 10 contained the UK variant – which has resulted in thousands of cases across the US – while one contained the new version.

Genetic analysis of the samples reportedly indicates that the new mutant was picked up from elsewhere in the community and did not evolve within the individual the sample was collected from.

"We didn't import this from elsewhere in the world – it occurred spontaneously," Dr Brian O'Roak, an associate professor at Oregon Health and Science University, told The New York Times.

Because the new mutant combines high transmissibility with increased ability to evade the immune system after vaccination, it could outcompete the original form of the UK variant, known to scientists as B1.1.7, which is thought to have emerged in south-east England in September.

In a briefing document on Sars-CoV-2 variants released last month, Public Health England wrote that E484K was “currently the mutation with most evidence of causing antigenic change”. Antigens are foreign substances recognised by the immune system.

“Several independent studies showing the impact of different antigenic variants have concluded E484K is among the single mutations with the greatest impact,” the document read.

It is “potentially more concerning”, the document stated, when found with N501Y, a mutation found in the UK, Brazilian and South African variants associated with increased transmissibility.

Public Health England estimates that the UK variant is 30 to 50 per cent more transmissible than original forms of the coronavirus, so the new mutant is likely to be similarly easy to pass on. It could become even more prevalent if vaccines are less effective at stopping it from being transmitted.

While new variants are concerning, Prof David Taylor, a professor emeritus of pharmaceutical and public health policy at University College London, said they were unlikely to be scupper efforts to control the pandemic.

“Will the vaccines be tweakable? Yes. It will cost money and you will have to have another vaccination round, but it will be doable,” he said.

“We should be celebrating the vaccines. [Researchers have] a technical base for improving them if and when necessary.”

Vaccine makers have already developed updated versions of their vaccines to cope with emerging variants, especially those first identified in Brazil and South Africa.

New versions of the Moderna, Oxford-AstraZeneca and Pfizer-BioNTech vaccines, among others, could be released later this year.

Updated vaccines are likely to go through streamlined testing procedures compared to those faced by the original vaccines, which were subject to extensive laboratory and clinical trials.

They could be given as booster shots to people already vaccinated, or combined with the existing vaccines as a bivalent vaccine, namely one that provides protection against two types of antigen.

While some shots have reduced efficacy against the new variants, developers of other vaccines, such as Russia’s Sputnik V, say tests indicate their products continue to perform well against them.

New variants arise because, when viruses replicate their genetic material as they reproduce, mistakes or mutations happen.

Mutations harmful to the virus are weeded out by natural selection, but those that make the pathogen better able to reproduce and spread tend to become more numerous within the virus population.

While numerous coronavirus variants have evolved, experts say the rate at which the pathogen mutates is actually quite low for viruses and slower than that of influenza, for example.

Just as amended vaccines are being formulated to cope with coronavirus variants, so new vaccines are typically introduced annually to cope with changes in influenza.

List of alleged parties

 May 15 2020: PM and Carrie attend 'work meeting' with at
least 17 staff members

May 20 2020: PM and Carrie attend 'bring your own booze'
party

Nov 27 2020: PM gives speech at leaving do for his staff

Dec 10 2020: Staff party held by then-education secretary
Gavin Williamson

Dec 13 2020: PM and Carrie throw a flat party

Dec 14 2020: London mayor candidate Shaun Bailey holds staff party at Conservative
Party headquarters

Dec 15 2020: PM takes part in a staff quiz

Dec 18 2020: Downing Street Christmas party

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Gearbox: 10-speed automatic
Power: 405hp at 5,500rpm
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Fuel economy, combined: 11.2L/100km
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KINGDOM%20OF%20THE%20PLANET%20OF%20THE%20APES
%3Cp%3E%3Cstrong%3EDirector%3A%3C%2Fstrong%3E%20Wes%20Ball%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStarring%3A%3C%2Fstrong%3E%20Owen%20Teague%2C%20Freya%20Allen%2C%20Kevin%20Durand%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%20%3C%2Fstrong%3E3.5%2F5%3C%2Fp%3E%0A
BULKWHIZ PROFILE

Date started: February 2017

Founders: Amira Rashad (CEO), Yusuf Saber (CTO), Mahmoud Sayedahmed (adviser), Reda Bouraoui (adviser)

Based: Dubai, UAE

Sector: E-commerce 

Size: 50 employees

Funding: approximately $6m

Investors: Beco Capital, Enabling Future and Wain in the UAE; China's MSA Capital; 500 Startups; Faith Capital and Savour Ventures in Kuwait

Roll of honour 2019-2020

Dubai Rugby Sevens

Winners: Dubai Hurricanes

Runners up: Bahrain

 

West Asia Premiership

Winners: Bahrain

Runners up: UAE Premiership

 

UAE Premiership

Winners: Dubai Exiles

Runners up: Dubai Hurricanes

 

UAE Division One

Winners: Abu Dhabi Saracens

Runners up: Dubai Hurricanes II

 

UAE Division Two

Winners: Barrelhouse

Runners up: RAK Rugby

What it means to be a conservationist

Who is Enric Sala?

Enric Sala is an expert on marine conservation and is currently the National Geographic Society's Explorer-in-Residence. His love of the sea started with his childhood in Spain, inspired by the example of the legendary diver Jacques Cousteau. He has been a university professor of Oceanography in the US, as well as working at the Spanish National Council for Scientific Research and is a member of the World Economic Forum’s Global Future Council on Biodiversity and the Bio-Economy. He has dedicated his life to protecting life in the oceans. Enric describes himself as a flexitarian who only eats meat occasionally.

What is biodiversity?

According to the United Nations Environment Programme, all life on earth – including in its forests and oceans – forms a “rich tapestry of interconnecting and interdependent forces”. Biodiversity on earth today is the product of four billion years of evolution and consists of many millions of distinct biological species. The term ‘biodiversity’ is relatively new, popularised since the 1980s and coinciding with an understanding of the growing threats to the natural world including habitat loss, pollution and climate change. The loss of biodiversity itself is dangerous because it contributes to clean, consistent water flows, food security, protection from floods and storms and a stable climate. The natural world can be an ally in combating global climate change but to do so it must be protected. Nations are working to achieve this, including setting targets to be reached by 2020 for the protection of the natural state of 17 per cent of the land and 10 per cent of the oceans. However, these are well short of what is needed, according to experts, with half the land needed to be in a natural state to help avert disaster.

Specs

Engine: Duel electric motors
Power: 659hp
Torque: 1075Nm
On sale: Available for pre-order now
Price: On request

The specs

Engine: 4-litre twin-turbo V8

Transmission: nine-speed

Power: 542bhp

Torque: 700Nm

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Scores in brief:

Boost Defenders 205-5 in 20 overs
(Colin Ingram 84 not out, Cameron Delport 36, William Somerville 2-28)
bt Auckland Aces 170 for 5 in 20 overs
(Rob O’Donnell 67 not out, Kyle Abbott 3-21).

WHY%20AAYAN%20IS%20'PERFECT%20EXAMPLE'
%3Cp%3EDavid%20White%20might%20be%20new%20to%20the%20country%2C%20but%20he%20has%20clearly%20already%20built%20up%20an%20affinity%20with%20the%20place.%3Cbr%3E%3Cbr%3EAfter%20the%20UAE%20shocked%20Pakistan%20in%20the%20semi-final%20of%20the%20Under%2019%20Asia%20Cup%20last%20month%2C%20White%20was%20hugged%20on%20the%20field%20by%20Aayan%20Khan%2C%20the%20team%E2%80%99s%20captain.%3Cbr%3E%3Cbr%3EWhite%20suggests%20that%20was%20more%20a%20sign%20of%20Aayan%E2%80%99s%20amiability%20than%20anything%20else.%20But%20he%20believes%20the%20young%20all-rounder%2C%20who%20was%20part%20of%20the%20winning%20Gulf%20Giants%20team%20last%20year%2C%20is%20just%20the%20sort%20of%20player%20the%20country%20should%20be%20seeking%20to%20produce%20via%20the%20ILT20.%3Cbr%3E%3Cbr%3E%E2%80%9CHe%20is%20a%20delightful%20young%20man%2C%E2%80%9D%20White%20said.%20%E2%80%9CHe%20played%20in%20the%20competition%20last%20year%20at%2017%2C%20and%20look%20at%20his%20development%20from%20there%20till%20now%2C%20and%20where%20he%20is%20representing%20the%20UAE.%3Cbr%3E%3Cbr%3E%E2%80%9CHe%20was%20influential%20in%20the%20U19%20team%20which%20beat%20Pakistan.%20He%20is%20the%20perfect%20example%20of%20what%20we%20are%20all%20trying%20to%20achieve%20here.%3Cbr%3E%3Cbr%3E%E2%80%9CIt%20is%20about%20the%20development%20of%20players%20who%20are%20going%20to%20represent%20the%20UAE%20and%20go%20on%20to%20help%20make%20UAE%20a%20force%20in%20world%20cricket.%E2%80%9D%C2%A0%3C%2Fp%3E%0A
Major honours

ARSENAL

  • FA Cup - 2005

BARCELONA

  • La Liga - 2013
  • Copa del Rey - 2012
  • Fifa Club World Cup - 2011

CHELSEA

  • Premier League - 2015, 2017
  • FA Cup - 2018
  • League Cup - 2015

SPAIN

  • World Cup - 2010
  • European Championship - 2008, 2012
The biog

Hobbies: Writing and running
Favourite sport: beach volleyball
Favourite holiday destinations: Turkey and Puerto Rico​

Jetour T1 specs

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Mobile phone packages comparison
Company profile: buybackbazaar.com

Name: buybackbazaar.com

Started: January 2018

Founder(s): Pishu Ganglani and Ricky Husaini

Based: Dubai

Sector: FinTech, micro finance

Initial investment: $1 million

How has net migration to UK changed?

The figure was broadly flat immediately before the Covid-19 pandemic, standing at 216,000 in the year to June 2018 and 224,000 in the year to June 2019.

It then dropped to an estimated 111,000 in the year to June 2020 when restrictions introduced during the pandemic limited travel and movement.

The total rose to 254,000 in the year to June 2021, followed by steep jumps to 634,000 in the year to June 2022 and 906,000 in the year to June 2023.

The latest available figure of 728,000 for the 12 months to June 2024 suggests levels are starting to decrease.

Lexus LX700h specs

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Transmission: 10-speed auto

Fuel consumption: 11.7L/100km

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Price: From Dh590,000