New research has highlighted the importance of wearing masks to prevent the spread of coronavirus, corroborating the UAE’s decision to make them mandatory.
Scientists found face coverings prevented the release of virus-containing droplets and tiny airborne particles responsible for the pathogen’s spread.
The analysis laid bare the risk posed by such aerosols, which are less than five micrometres (a 200th of a millimetre) in diameter.
They are released into the air when people breathe or speak, and can remain suspended for hours in contrast to larger droplets, which typically fall to surfaces within seconds.
Experts said “a large proportion” of coronavirus infections appeared to be caused by the release of these aerosols by those who were not yet symptomatic.
Owing to their smaller size, aerosols may lead to higher severity of Covid-19 because virus-containing aerosols penetrate more deeply into the lungs
“Evidence suggests that SARS-CoV-2 [the new coronavirus] is silently spreading in aerosols exhaled by highly contagious infected individuals with no symptoms,” the study said.
“Owing to their smaller size, aerosols may lead to higher severity of Covid-19 because virus-containing aerosols penetrate more deeply into the lungs.”
The research paper was co-authored by scientists from the University of California San Diego in the United States and the National Sun Yat-Sen University in Taiwan.
Entitled Reducing transmission of SARS-CoV-2, it was published in the journal Science on May 27.
As part of the paper, academics reviewed 15 existing studies on the pandemic and the nature of the outbreak’s transmission.
They highlighted research from a hospital in Wuhan, China, the city where the virus began, which indicated aerosols could travel more than six feet.
That study found that when a person coughs or sneezes hard, droplets can be spread more than 20ft and “thousands” of aerosols can travel further still.
Other research also indicated that outdoors, the virus could spread even larger distances on breezes, although this was found to be less of a risk due to aerosols being diluted.
Professor Chia Wang, of National Sun Yat-Sen University, Taiwan, one of the study’s authors, said social distancing rules implemented by governments were mostly based on the spread of droplets and took less account of the risks of aerosols.
“When someone is infected by the virus, when they emit aerosols, these aerosols can contain the virus,” she said.
“Wearing a mask, both by an affected patient and a healthy, unaffected person, should effectively block the transmission of the virus-containing aerosols.”
As countries around the world attempt to reduce Covid-19 restrictions and resume normal activity, researchers argued that widespread testing - so infected individuals could be identified and isolated - as well as “universal” mask wearing, was required.
In the UAE, all members of the public are required to wear masks outside the home, with those failing to adhere to the measure risking a Dh3,000 fine.
Some exceptions have been allowed, however, with officials in Dubai saying those eating or drinking, who were alone or doing strenuous exercise, did not have to observe the rule.
Meanwhile, other countries have chosen to ignore making the wearing of masks mandatory entirely.
Dr Andrew Freedman, an infectious diseases specialist at the School of Medicine at Cardiff University in the UK, said the benefit was probably only greater in certain circumstances.
“It’s really indoors, because the risk is much higher,” he said. “[For example on] public transport – anywhere where it’s very difficult to maintain the two-metre or one-metre distancing.
“My feeling is outdoors they’re unnecessary. There’ve been some concerns they could have a negative effect – they might give people a false sense of security.
“They might think if they wear a mask, they don’t have to keep their distance, but none of this is proven. On balance, they probably are useful.”
Prof Wang estimated that at the peak of the outbreak in Taiwan, around 90 per cent of people on the street wore masks, which were mandatory in many indoor spaces too.
The study also credited mask-wearing with limiting outbreaks in Hong Kong, South Korea and Singapore.
“Universal mask wearing will certainly help to prevent the transmission of Covid-19,” she said.
Key facilities
- Olympic-size swimming pool with a split bulkhead for multi-use configurations, including water polo and 50m/25m training lanes
- Premier League-standard football pitch
- 400m Olympic running track
- NBA-spec basketball court with auditorium
- 600-seat auditorium
- 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
UAE currency: the story behind the money in your pockets
UAE currency: the story behind the money in your pockets
MEDIEVIL%20(1998)
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If%20you%20go
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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.
So what is Spicy Chickenjoy?
Just as McDonald’s has the Big Mac, Jollibee has Spicy Chickenjoy – a piece of fried chicken that’s crispy and spicy on the outside and comes with a side of spaghetti, all covered in tomato sauce and topped with sausage slices and ground beef. It sounds like a recipe that a child would come up with, but perhaps that’s the point – a flavourbomb combination of cheap comfort foods. Chickenjoy is Jollibee’s best-selling product in every country in which it has a presence.
Company profile
Name: One Good Thing
Founders: Bridgett Lau and Micheal Cooke
Based in: Dubai
Sector: e-commerce
Size: 5 employees
Stage: Looking for seed funding
Investors: Self-funded and seeking external investors
FINAL RESULT
Sharjah Wanderers 20 Dubai Tigers 25 (After extra-time)
Wanderers
Tries: Gormley, Penalty
cons: Flaherty
Pens: Flaherty 2
Tigers
Tries: O’Donnell, Gibbons, Kelly
Cons: Caldwell 2
Pens: Caldwell, Cross
The specs: 2018 Nissan 370Z Nismo
The specs: 2018 Nissan 370Z Nismo
Price, base / as tested: Dh182,178
Engine: 3.7-litre V6
Power: 350hp @ 7,400rpm
Torque: 374Nm @ 5,200rpm
Transmission: Seven-speed automatic
Fuel consumption, combined: 10.5L / 100km
How much do leading UAE’s UK curriculum schools charge for Year 6?
- Nord Anglia International School (Dubai) – Dh85,032
- Kings School Al Barsha (Dubai) – Dh71,905
- Brighton College Abu Dhabi - Dh68,560
- Jumeirah English Speaking School (Dubai) – Dh59,728
- Gems Wellington International School – Dubai Branch – Dh58,488
- The British School Al Khubairat (Abu Dhabi) - Dh54,170
- Dubai English Speaking School – Dh51,269
*Annual tuition fees covering the 2024/2025 academic year
The specs
Engine: 4.0-litre flat-six
Torque: 450Nm at 6,100rpm
Transmission: 7-speed PDK auto or 6-speed manual
Fuel economy, combined: 13.8L/100km
On sale: Available to order now
Specs
Engine: Duel electric motors
Power: 659hp
Torque: 1075Nm
On sale: Available for pre-order now
Price: On request
Dengue%20fever%20symptoms
%3Cp%3EHigh%20fever%20(40%C2%B0C%2F104%C2%B0F)%3Cbr%3ESevere%20headache%3Cbr%3EPain%20behind%20the%20eyes%3Cbr%3EMuscle%20and%20joint%20pains%3Cbr%3ENausea%3Cbr%3EVomiting%3Cbr%3ESwollen%20glands%3Cbr%3ERash%26nbsp%3B%3C%2Fp%3E%0A
Ferrari 12Cilindri specs
Engine: naturally aspirated 6.5-liter V12
Power: 819hp
Torque: 678Nm at 7,250rpm
Price: From Dh1,700,000
Available: Now
Abu Dhabi Sustainability Week
Director: Laxman Utekar
Cast: Vicky Kaushal, Akshaye Khanna, Diana Penty, Vineet Kumar Singh, Rashmika Mandanna
Rating: 1/5
Match info
Wolves 0
Arsenal 2 (Saka 43', Lacazette 85')
Man of the match: Shkodran Mustafi (Arsenal)
The%20specs
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Kanye%20West
%3Cp%3EYe%20%E2%80%94%20the%20rapper%20formerly%20known%20as%20Kanye%20West%20%E2%80%94%20has%20seen%20his%20net%20worth%20fall%20to%20%24400%20million%20in%20recent%20weeks.%20That%E2%80%99s%20a%20precipitous%20drop%20from%20Bloomberg%E2%80%99s%20estimates%20of%20%246.8%20billion%20at%20the%20end%20of%202021.%3Cbr%3EYe%E2%80%99s%20wealth%20plunged%20after%20business%20partners%2C%20including%20Adidas%2C%20severed%20ties%20with%20him%20on%20the%20back%20of%20anti-Semitic%20remarks%20earlier%20this%20year.%3Cbr%3EWest%E2%80%99s%20present%20net%20worth%20derives%20from%20cash%2C%20his%20music%2C%20real%20estate%20and%20a%20stake%20in%20former%20wife%20Kim%20Kardashian%E2%80%99s%20shapewear%20firm%2C%20Skims.%3C%2Fp%3E%0A
Company%C2%A0profile
%3Cp%3E%3Cstrong%3ECompany%20name%3A%20%3C%2Fstrong%3ELeap%0D%3Cbr%3E%3Cstrong%3EStarted%3A%20%3C%2Fstrong%3EMarch%202021%0D%3Cbr%3E%3Cstrong%3EFounders%3A%3C%2Fstrong%3E%20Ziad%20Toqan%20and%20Jamil%20Khammu%0D%3Cbr%3E%3Cstrong%3EBased%3A%3C%2Fstrong%3E%20Dubai%0D%3Cbr%3E%3Cstrong%3ESector%3A%20%3C%2Fstrong%3EFinTech%0D%3Cbr%3E%3Cstrong%3EInvestment%20stage%3A%20%3C%2Fstrong%3EPre-seed%0D%3Cbr%3E%3Cstrong%3EFunds%20raised%3A%3C%2Fstrong%3E%20Undisclosed%0D%3Cbr%3E%3Cstrong%3ECurrent%20number%20of%20staff%3A%20%3C%2Fstrong%3ESeven%3C%2Fp%3E%0A
BUNDESLIGA FIXTURES
Friday (UAE kick-off times)
Borussia Dortmund v Paderborn (11.30pm)
Saturday
Bayer Leverkusen v SC Freiburg (6.30pm)
Werder Bremen v Schalke (6.30pm)
Union Berlin v Borussia Monchengladbach (6.30pm)
Eintracht Frankfurt v Wolfsburg (6.30pm)
Fortuna Dusseldof v Bayern Munich (6.30pm)
RB Leipzig v Cologne (9.30pm)
Sunday
Augsburg v Hertha Berlin (6.30pm)
Hoffenheim v Mainz (9pm)
Euro 2020
Group A: Italy, Switzerland, Wales, Turkey
Group B: Belgium, Russia, Denmark, Finland
Group C: Netherlands, Ukraine, Austria,
Georgia/Kosovo/Belarus/North Macedonia
Group D: England, Croatia, Czech Republic,
Scotland/Israel/Norway/Serbia
Group E: Spain, Poland, Sweden,
N.Ireland/Bosnia/Slovakia/Ireland
Group F: Germany, France, Portugal,
Iceland/Romania/Bulgaria/Hungary
UAE currency: the story behind the money in your pockets
THE DETAILS
Kaala
Dir: Pa. Ranjith
Starring: Rajinikanth, Huma Qureshi, Easwari Rao, Nana Patekar
Rating: 1.5/5
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
