US government researchers found that two masks are better than one in slowing coronavirus spread, but health officials stopped short of recommending that everyone double up.
The Centres for Disease Control and Prevention on Wednesday gave the results of a laboratory experiment that spaced two artificial heads two metres from each other.
Researchers then checked to see how many coronavirus-sized particles released by one were inhaled by the other.
The researchers found that wearing one mask, surgical or cloth, blocked about 40 per cent of the particles coming in.
When a cloth mask was worn on top of a surgical mask, about 80 per cent were blocked.
When both the exhaling and inhaling heads were double-masked, more than 95 per cent of the particles were blocked, said the CDC’s Dr John Brooks.
“The first challenge is to get as many as people as possible masking," Dr Brooks said.
"And then for those that do mask, to help them get the best benefit out of that mask."
The study had many limits. The researchers used only one brand of surgical mask and one kind of cloth mask, and it is not clear if results would be the same with every product.
But it echoes earlier research that suggested two masks were better than one.
“It works,” Dr Brooks said.
The agency has also updated its guidance on wearing two masks.
If done correctly, a cloth mask worn over a surgical mask can tighten the gaps that can let virus particles in around the mask’s edges, it said.
The agency said it was taking down a do-it-yourself page that went up last year when masks were in short supply, and it was encouraging people to take steps to interrupt viral transmission.
Some Americans have already started doubling up on masks.
Experts believe this is at least partly out of concern over new strains of coronavirus that have been found to spread more easily than the one that has driven the US epidemic for the past year.
CDC guidance has evolved over the course of the epidemic.
Wearing masks has long been common in some countries during respiratory outbreaks, especially in parts of Asia, but not in the US.
When the Covid-19 crisis began and masks disappeared from shop shelves, US health officials discouraged the general public from wearing them.
“Seriously people, stop buying masks,” then-surgeon general Jerome Adams wrote in a tweet almost a year ago.
Two months later, after it became clear that infected people who did not exhibit symptoms could spread the virus, the CDC began recommending that people wear masks in public.
More people are wearing masks and some places have made them obligatory, but many Americans continue to shun them.
A recent University of California survey suggested that only about half of US adults wear masks when in close contact with people outside their household.
Discussions about double-masking and higher-quality masks are important, said Dr Isaac Bogoch, an infectious diseases scientist at the University of Toronto.
“But if a significant proportion of your population isn’t wearing a mask in the first place, then you’re having the wrong conversation,” Dr Bogoch said.
ADCC AFC Women’s Champions League Group A fixtures
October 3: v Wuhan Jiangda Women’s FC
October 6: v Hyundai Steel Red Angels Women’s FC
October 9: v Sabah FA
Previous men's records
- 2:01:39: Eliud Kipchoge (KEN) on 16/9/19 in Berlin
- 2:02:57: Dennis Kimetto (KEN) on 28/09/2014 in Berlin
- 2:03:23: Wilson Kipsang (KEN) on 29/09/2013 in Berlin
- 2:03:38: Patrick Makau (KEN) on 25/09/2011 in Berlin
- 2:03:59: Haile Gebreselassie (ETH) on 28/09/2008 in Berlin
- 2:04:26: Haile Gebreselassie (ETH) on 30/09/2007 in Berlin
- 2:04:55: Paul Tergat (KEN) on 28/09/2003 in Berlin
- 2:05:38: Khalid Khannouchi (USA) 14/04/2002 in London
- 2:05:42: Khalid Khannouchi (USA) 24/10/1999 in Chicago
- 2:06:05: Ronaldo da Costa (BRA) 20/09/1998 in Berlin
The stats
Ship name: MSC Bellissima
Ship class: Meraviglia Class
Delivery date: February 27, 2019
Gross tonnage: 171,598 GT
Passenger capacity: 5,686
Crew members: 1,536
Number of cabins: 2,217
Length: 315.3 metres
Maximum speed: 22.7 knots (42kph)
A list of the animal rescue organisations in the UAE
Bullet%20Train
%3Cp%3E%3Cstrong%3EDirector%3A%3C%2Fstrong%3E%20David%20Leitch%3Cbr%3E%3Cstrong%3EStars%3A%3C%2Fstrong%3E%20Brad%20Pitt%2C%20Aaron%20Taylor-Johnson%2C%20Brian%20Tyree%20Henry%2C%20Sandra%20Bullock%3Cbr%3E%3Cstrong%3ERating%3A%3C%2Fstrong%3E%203%2F5%3C%2Fp%3E%0A
Key products and UAE prices
iPhone XS
With a 5.8-inch screen, it will be an advance version of the iPhone X. It will be dual sim and comes with better battery life, a faster processor and better camera. A new gold colour will be available.
Price: Dh4,229
iPhone XS Max
It is expected to be a grander version of the iPhone X with a 6.5-inch screen; an inch bigger than the screen of the iPhone 8 Plus.
Price: Dh4,649
iPhone XR
A low-cost version of the iPhone X with a 6.1-inch screen, it is expected to attract mass attention. According to industry experts, it is likely to have aluminium edges instead of stainless steel.
Price: Dh3,179
Apple Watch Series 4
More comprehensive health device with edge-to-edge displays that are more than 30 per cent bigger than displays on current models.
Specs
Engine: Electric motor generating 54.2kWh (Cooper SE and Aceman SE), 64.6kW (Countryman All4 SE)
Power: 218hp (Cooper and Aceman), 313hp (Countryman)
Torque: 330Nm (Cooper and Aceman), 494Nm (Countryman)
On sale: Now
Price: From Dh158,000 (Cooper), Dh168,000 (Aceman), Dh190,000 (Countryman)
Ferrari 12Cilindri specs
Engine: naturally aspirated 6.5-liter V12
Power: 819hp
Torque: 678Nm at 7,250rpm
Price: From Dh1,700,000
Available: Now
More on Quran memorisation:
Red flags
- Promises of high, fixed or 'guaranteed' returns.
- Unregulated structured products or complex investments often used to bypass traditional safeguards.
- Lack of clear information, vague language, no access to audited financials.
- Overseas companies targeting investors in other jurisdictions - this can make legal recovery difficult.
- Hard-selling tactics - creating urgency, offering 'exclusive' deals.
Courtesy: Carol Glynn, founder of Conscious Finance Coaching
Killing of Qassem Suleimani
The five pillars of Islam
The five pillars of Islam
1. Fasting
2. Prayer
3. Hajj
4. Shahada
5. Zakat
What is Diwali?
The Hindu festival is at once a celebration of the autumn harvest and the triumph of good over evil, as outlined in the Ramayana.
According to the Sanskrit epic, penned by the sage Valmiki, Diwali marks the time that the exiled king Rama – a mortal with superhuman powers – returned home to the city of Ayodhya with his wife Sita and brother Lakshman, after vanquishing the 10-headed demon Ravana and conquering his kingdom of Lanka. The people of Ayodhya are believed to have lit thousands of earthen lamps to illuminate the city and to guide the royal family home.
In its current iteration, Diwali is celebrated with a puja to welcome the goodness of prosperity Lakshmi (an incarnation of Sita) into the home, which is decorated with diyas (oil lamps) or fairy lights and rangoli designs with coloured powder. Fireworks light up the sky in some parts of the word, and sweetmeats are made (or bought) by most households. It is customary to get new clothes stitched, and visit friends and family to exchange gifts and greetings.
Short-term let permits explained
Homeowners and tenants are allowed to list their properties for rental by registering through the Dubai Tourism website to obtain a permit.
Tenants also require a letter of no objection from their landlord before being allowed to list the property.
There is a cost of Dh1,590 before starting the process, with an additional licence fee of Dh300 per bedroom being rented in your home for the duration of the rental, which ranges from three months to a year.
Anyone hoping to list a property for rental must also provide a copy of their title deeds and Ejari, as well as their Emirates ID.
In 2018, the ICRC received 27,756 trace requests in the Middle East alone. The global total was 45,507.
There are 139,018 global trace requests that have not been resolved yet, 55,672 of these are in the Middle East region.
More than 540,000 individuals approached the ICRC in the Middle East asking to be reunited with missing loved ones in 2018.
The total figure for the entire world was 654,000 in 2018.
Bio:
Favourite Quote: Prophet Mohammad's quotes There is reward for kindness to every living thing and A good man treats women with honour
Favourite Hobby: Serving poor people
Favourite Book: The Alchemist by Paulo Coelho
Favourite food: Fish and vegetables
Favourite place to visit: London
Dhadak
Director: Shashank Khaitan
Starring: Janhvi Kapoor, Ishaan Khattar, Ashutosh Rana
Stars: 3
What drives subscription retailing?
Once the domain of newspaper home deliveries, subscription model retailing has combined with e-commerce to permeate myriad products and services.
The concept has grown tremendously around the world and is forecast to thrive further, according to UnivDatos Market Insights’ report on recent and predicted trends in the sector.
The global subscription e-commerce market was valued at $13.2 billion (Dh48.5bn) in 2018. It is forecast to touch $478.2bn in 2025, and include the entertainment, fitness, food, cosmetics, baby care and fashion sectors.
The report says subscription-based services currently constitute “a small trend within e-commerce”. The US hosts almost 70 per cent of recurring plan firms, including leaders Dollar Shave Club, Hello Fresh and Netflix. Walmart and Sephora are among longer established retailers entering the space.
UnivDatos cites younger and affluent urbanites as prime subscription targets, with women currently the largest share of end-users.
That’s expected to remain unchanged until 2025, when women will represent a $246.6bn market share, owing to increasing numbers of start-ups targeting women.
Personal care and beauty occupy the largest chunk of the worldwide subscription e-commerce market, with changing lifestyles, work schedules, customisation and convenience among the chief future drivers.
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Ahmed Raza
UAE cricket captain
Age: 31
Born: Sharjah
Role: Left-arm spinner
One-day internationals: 31 matches, 35 wickets, average 31.4, economy rate 3.95
T20 internationals: 41 matches, 29 wickets, average 30.3, economy rate 6.28
The specs: Rolls-Royce Cullinan
Price, base: Dh1 million (estimate)
Engine: 6.75-litre twin-turbo V12
Transmission: Eight-speed automatic
Power: 563hp @ 5,000rpm
Torque: 850Nm @ 1,600rpm
Fuel economy, combined: 15L / 100km
The White Lotus: Season three
Creator: Mike White
Starring: Walton Goggins, Jason Isaacs, Natasha Rothwell
Rating: 4.5/5
Ruwais timeline
1971 Abu Dhabi National Oil Company established
1980 Ruwais Housing Complex built, located 10 kilometres away from industrial plants
1982 120,000 bpd capacity Ruwais refinery complex officially inaugurated by the founder of the UAE Sheikh Zayed
1984 Second phase of Ruwais Housing Complex built. Today the 7,000-unit complex houses some 24,000 people.
1985 The refinery is expanded with the commissioning of a 27,000 b/d hydro cracker complex
2009 Plans announced to build $1.2 billion fertilizer plant in Ruwais, producing urea
2010 Adnoc awards $10bn contracts for expansion of Ruwais refinery, to double capacity from 415,000 bpd
2014 Ruwais 261-outlet shopping mall opens
2014 Production starts at newly expanded Ruwais refinery, providing jet fuel and diesel and allowing the UAE to be self-sufficient for petrol supplies
2014 Etihad Rail begins transportation of sulphur from Shah and Habshan to Ruwais for export
2017 Aldar Academies to operate Adnoc’s schools including in Ruwais from September. Eight schools operate in total within the housing complex.
2018 Adnoc announces plans to invest $3.1 billion on upgrading its Ruwais refinery
2018 NMC Healthcare selected to manage operations of Ruwais Hospital
2018 Adnoc announces new downstream strategy at event in Abu Dhabi on May 13
Source: The National
