UAE reopens Damascus embassy after seven years

The coronavirus can stay aloft for hours in tiny droplets in stagnant air, infecting people as they inhale, mounting scientific evidence suggests.

This risk is highest in crowded indoor spaces with poor ventilation, and may help explain superspreading events reported in meatpacking plants, churches and restaurants.

It’s unclear how often the virus is spread via these tiny droplets, or aerosols, compared with larger droplets that are expelled when a sick person coughs or sneezes, or transmitted through contact with contaminated surfaces, said Linsey Marr, an aerosol expert at Virginia Tech.

Follow latest updates on the Covid-19 pandemic here

Aerosols are released even when a person without symptoms exhales, talks or sings, according to Marr and more than 200 other experts, who have outlined the evidence in an open letter to the World Health Organization.

What is clear, they said, is that people should consider minimizing time indoors with people outside their families. Schools, nursing homes and businesses should consider adding powerful new air filters and ultraviolet lights that can kill airborne viruses.

What does it mean for a virus to be airborne?

For a virus to be airborne means that it can be carried through the air in a viable form. For most pathogens, this is a yes-no scenario. HIV, too delicate to survive outside the body, is not airborne. Measles is airborne, and dangerously so: It can survive in the air for up to two hours.

For the coronavirus, the definition has been more complicated. Experts agree that the virus does not travel long distances or remain viable outdoors. But evidence suggests it can traverse the length of a room and, in one set of experimental conditions, remain viable for perhaps three hours.

How are aerosols different from droplets?

Aerosols are droplets, droplets are aerosols — they do not differ except in size. Scientists sometimes refer to droplets fewer than 5 microns in diameter as aerosols. (By comparison, a red blood cell is about 5 microns in diameter; a human hair is about 50 microns wide.)

From the start of the pandemic, the WHO and other public health organizations have focused on the virus’s ability to spread through large droplets that are expelled when a symptomatic person coughs or sneezes.

These droplets are heavy, relatively speaking, and fall quickly to the floor or onto a surface that others might touch. This is why public health agencies have recommended maintaining a distance of at least 6 feet from others, and frequent hand washing.

But some experts have said for months that infected people also are releasing aerosols when they cough and sneeze. More important, they expel aerosols even when they breathe, talk or sing, especially with some exertion.

Scientists know now that people can spread the virus even in the absence of symptoms — without coughing or sneezing — and aerosols might explain that phenomenon.

Because aerosols are smaller, they contain much less virus than droplets do. But because they are lighter, they can linger in the air for hours, especially in the absence of fresh air. In a crowded indoor space, a single infected person can release enough aerosolized virus over time to infect many people, perhaps seeding a superspreader event.

For droplets to be responsible for that kind of spread, a single person would have to be within a few feet of all the other people, or to have contaminated an object that everyone else touched. All that seems unlikely to many experts: “I have to do too many mental gymnastics to explain those other routes of transmission compared to aerosol transmission, which is much simpler,” Marr said.

Can I stop worrying about physical distancing and washing my hands?

Physical distancing is still very important. The closer you are to an infected person, the more aerosols and droplets you may be exposed to. Washing your hands often is still a good idea.

What’s new is that those two things may not be enough. “We should be placing as much emphasis on masks and ventilation as we do with hand washing,” Marr said. “As far as we can tell, this is equally important, if not more important.”

Should I begin wearing a hospital-grade mask indoors? And how long is too long to stay indoors?

Health care workers may all need to wear N95 masks, which filter out most aerosols. At the moment, they are advised to do so only when engaged in certain medical procedures that are thought to produce aerosols.

For the rest of us, cloth face masks will still greatly reduce risk, as long as most people wear them. At home, when you’re with your own family or with roommates you know to be careful, masks are still not necessary. But it is a good idea to wear them in other indoor spaces, experts said.

As for how long is safe, that is frustratingly tough to answer. A lot depends on whether the room is too crowded to allow for a safe distance from others and whether there is fresh air circulating through the room.

What does airborne transmission mean for reopening schools and colleges?

This is a matter of intense debate. Many schools are poorly ventilated and are too poorly funded to invest in new filtration systems. “There is a huge vulnerability to infection transmission via aerosols in schools,” said Don Milton, an aerosol expert at the University of Maryland.

Most children younger than 12 seem to have only mild symptoms, if any, so elementary schools may get by. “So far, we don’t have evidence that elementary schools will be a problem, but the upper grades, I think, would be more likely to be a problem,” Milton said.

College dorms and classrooms are also cause for concern.

Milton said the government should think of long-term solutions for these problems. Having public schools closed “clogs up the whole economy, and it’s a major vulnerability,” he said.

“Until we understand how this is part of our national defense, and fund it appropriately, we’re going to remain extremely vulnerable to these kinds of biological threats.”

What are some things I can do to minimize the risks?

Do as much as you can outdoors. Despite the many photos of people at beaches, even a somewhat crowded beach, especially on a breezy day, is likely to be safer than a pub or an indoor restaurant with recycled air.

But even outdoors, wear a mask if you are likely to be close to others for an extended period.

When indoors, one simple thing people can do is to “open their windows and doors whenever possible,” Marr said. You can also upgrade the filters in your home air-conditioning systems, or adjust the settings to use more outdoor air rather than recirculated air.

Public buildings and businesses may want to invest in air purifiers and ultraviolet lights that can kill the virus. Despite their reputation, elevators may not be a big risk, Milton said, compared with public bathrooms or offices with stagnant air where you may spend a long time.

If none of those things are possible, try to minimize the time you spend in an indoor space, especially without a mask. The longer you spend inside, the greater the dose of virus you might inhale.

Riyadh, May 31: Over 90,000 mosques in Saudi Arabia reopened their doors to worshippers on Sunday morning after over a two-month closure as part of an ease in the curfew restrictions to prevent the spread of the novel coronavirus.

The worshipers were allowed to enter the mosques, except the mosques in Makkah, from Fajr prayers today morning (Shawwal 8) with a limit of 40 per cent capacity.

The reopening of mosques was be undertaken in accordance with the guidance of Minister of Islamic Affairs, Dr Abdullatif Al Asheikh, and in line with advice issued by the Senior Council of Ulemas.

The ministry has embarked on a vigorous media campaign to urge all worshippers to abide by preventive measures for their own safety to curb the spread of Covid-19.Among the instructions are doing ablution at home, hand-washing and using sanitisers before going out to the mosque and after coming back home.

On Saturday, the Custodian of the Two Holy Mosques King Salman has approved opening the Prophet's Mosque in Madinah in stages to the public.

The elderly and those with chronic diseases are advised to perform their prayers at home. Reading and reciting the Holy Quran online is advised, too, from one's own mobile phone or at least reading from a privately owned copy of the Holy Quran.

Bringing one's prayer mat to perform prayers in mosques is highly recommended as well as keeping a two-metre distance between one another prayer.

Accompanying children under the age of 15 to the mosques is prohibited. Putting on a face mask and avoiding shaking hands and other contact is also recommended.

Meanwhile, the ministry managed, during the closure of mosques, to undertaking a massive cleaning, sanitising and maintenance drive in all mosques Kingdom-wide, according to world-class standards and best known practices. This included sanitising over 10 million mosques, 43 million copies of several sizes and volumes of the Quran, more than 600,000 Holy Quran cupboards, in addition to repairing and maintaining about 176,000

#صور#صلاة_الفجر في مساجد منطقة
مكة المكرمة pic.twitter.com/fC4RfJInGC

— إمارة منطقة مكة (@makkahregion) May 31, 2020

water closets, annexed to mosques.

May 18: As the UAE authorities have asked all residents to avoid gatherings, it is clear that - for the first time - it's going to be a #StayHome Eid. But experts say that although it will be different, the celebration will be just as meaningful.

It is important to remember that the Eid prayer can be performed at home either individually or with family members under the sane roof, said Dr Mohammed Eyada Ayoub Alkobaisi, a Grand Mufti with the Islamic Affairs and Charitable Activities Department in Dubai.

Dr Alkobaisi said this prayer is a highly recommended Sunnah or practice urged by the Prophet Muhammad (Peace be upon him).

"Eid Prayer must be performed openly, unless we are prevented for an acceptable reason, such as fear for self, wellbeing, property, etc." Under the current circumstances, prayers can be offered from home, he said.

But what the faithful will likely miss is listening to the khutbah or the sermon of Eid with a crowd. The sight of people pouring out into the streets and coming together for prayer and worship would not be unfolding this time.

Dr Sheikh Mohamed Ashmawy, an Islamic researcher, said that in this time of Covid, doing away with several Eid traditions would be necessary for everyone's safety.

"The ban is is line with the ongoing preventive measures to curb the spread of Covid-19," he said.

However, it doesn't mean people can't celebrate and exchange heartfelt greetings, he added.

"We can greet each other remotely on the phone or via social media networks."

Islamic researcher Sheikh Mohamed Wasfi said audio-visual smart apps have made communication much easier, even bringing people closer than before.

"Of course, families and friends wish to hug, shake hands and see each other personally, but this will be a big risk these days," he said.

Sheikh Asadullah Del Mohamed, an imam, reminded that banquets, parties and visits are discouraged to avoid crowds and gathering.

Recently, 30 people from two families tested positive for the virus after breaking social distancing rules and holding a gathering.

Faithful's sentiments

Ibrahim Abdelkader, an Egyptian auditor, said that while it would be sad to spend Eid Al Fitr at home, he understood that it is for everyone's safety.

"Better to stay home than be sorry," said Ahmad Jamil, a Syrian resident.

Rashid Saeed, an Emirati national, said people are advised to just check on each other by phone or video and voice call apps.

"While Eid prayers is banned in congregation, it's not acceptable at all for some people to carelessly gather and exchange visits," he said.

Abdullah Al Saleh, an Emirati national, said he and all his relatives used to gather for breakfast after the Eid prayer - but this time, they are ready to do it in their own homes.

Mohamed Ibrahim, another Emirati, said he would surely miss seeing his kids happily prancing around with their new clothes and enjoying the outdoors like every year.

"But, I agree as it is for their health, safety and wellbeing," he said.

THINGS TO REMEMBER IN CELEBRATING EID THIS YEAR

>Perform the Eid prayer at home, individually or with family members living with you

>Exchange greetings with loved ones and friends via phone calls or online

>No hugs

>No handshakes

>No gatherings

>No visits to other homes