‘1st time in Independent India': US on 'affecting status' of Muslims with CAA, NRC

London, May 20: The current physical distancing guidelines of 6 feet may be insufficient to prevent COVID-19 transmission, according to a study which says a mild cough in low wind speeds can propel saliva droplets by as much as 18 feet.

Researchers, including those from the University of Nicosia in Cyprus, said a good baseline for studying the airborne transmission of viruses, like the one behind the COVID-19 pandemic, is a deeper understanding of how particles travel through the air when people cough.

In the study, published in the journal Physics of Fluids, they said even with a slight breeze of about four kilometres per hour (kph), saliva travels 18 feet in 5 seconds.

"The droplet cloud will affect both adults and children of different heights," said study co-author Dimitris Drikakis from the University of Nicosia.

According to the scientists, shorter adults and children could be at higher risk if they are located within the trajectory of the saliva droplets.

They said saliva is a complex fluid, which travels suspended in a bulk of surrounding air released by a cough, adding that many factors affect how saliva droplets travel in the air.

These factors, the study noted, include the size and number of droplets, how they interact with one another and the surrounding air as they disperse and evaporate, how heat and mass are transferred, and the humidity and temperature of the surrounding air.

In the study, the scientists created a computer simulation to examine the state of every saliva droplet moving through the air in front of a coughing person.

The model considered the effects of humidity, dispersion force, interactions of molecules of saliva and air, and how the droplets change from liquid to vapour and evaporate, along with a grid representing the space in front of a coughing person.

Each grid, the scientists said, holds information about variables like pressure, fluid velocity, temperature, droplet mass, and droplet position.

The study analysed the fates of nearly 1,008 simulated saliva droplets, and solved as many as 3.7 million equations.

"The purpose of the mathematical modelling and simulation is to take into account all the real coupling or interaction mechanisms that may take place between the main bulk fluid flow and the saliva droplets, and between the saliva droplets themselves," explained Talib Dbouk, another co-author of the study.

However, the researchers added that further studies are needed to determine the effect of ground surface temperature on the behaviour of saliva in air.

They also believe that indoor environments, especially ones with air conditioning, may significantly affect the particle movement through air.

This work is important since it concerns safety distance guidelines, and advances the understanding of the transmission of airborne diseases, Drikakis said.

The unexpected lockdown to prevent spread of covid–19 has caused a serious damage to the lives of Indian expatriates irrespective of laborers and entrepreneurs in Kingdom of Saudi Arabia. Different stories of expatriates' ordeals are emerging from the region. 

Abdul Razaq, hailing from Udupi in Karnataka has been running small scale business at Jeddah, Saudi Arabia, based on oil refinery projects of the government. He was undergoing medical treatment for his cancer which is in fist stage. He explaines his ordeals caused by lockdown and stopping the flight facility. 

“I was regularly visiting home country for the treatment of cancer. Now I cannot go as international flight service has been stopped. I expect that government will hear problems of expatriates and will arrange facilities to take us back to home”, he said.

Mubeen from Bengaluru was working on temporary basis  for a company in Jubail. He had lost his jobs like some of his colleagues due to the lockdown.

“As everything was alright, I had brought my parents recently to Saudi Arabia on a visit visa. Things changed drastically with covid-19 attack. Continuous lockdown caused burden over the company and they removed temporary employees like me to control possible losses” he said.

“Now owner of the flat has been harassing me for the rent. I do not have money either to pay rent or to cover daily family expenses. I do not know what to do further”, he added. 

Iqbal from Mangaluru left for Saudi Arabia to help his family. He got a job in a juce centre in Dammam recently. Corona lockdown made his life difficult. He is eager to return his home country. 

“I came to Saudi Arbia because of financial difficulties as I had not found any job with good salary there. I thought I can earn well by going to Saudi Arabia. However, here too the salary was not so good. Now juice center is closed due to lockdown and sponsor is giving very small amount of money as salary through which we cannot afford our expenses and our families back in home,” he said.

“Here It is not easy get help of fellow Indians since most of them have their own ordeals. I would like to return home country; there however we can manage to get help of friends and relatives. I am looking forward the help of Indian government to start air facility for stranded NRIs,” he said. 

Mohsin from Mysuru is a taxi driver in Dammam, Saudi Arabia. He was earning on commission basis. Now Saudi government banned movement of taxis in the region, which pushed him and his fellow taxi drivers into trouble.

“We were earning commissions daily on the basis of trips. Now we cannot move outside with taxi since it may cause us to pay the fine of SR.10000. How can I manage my expenses and family members in home?”, he asked.

There are cases of pregnant women who have to return India for delivery. Those who brought family here on visit visa will not have insurance. Delivery charges and any kind of medical facilities without insurance in Saudi Arabia is very expensive. Expatriate Indians with such problems are awaiting government's help.

“I had brought my wife on one year visit visa. Now she is pregnant and I have to send her back to home for delivery. If lockdown continues, it is difficult to send back and we have to spend big amounts for delivery without insurance. It is a big burden to me as I work for small salary in a company”, said Yunus from Hyderabad, who is living in Jeddah, Saudi Arabia.

Lockdown is haunting even entrepreneurs in Saudi Arabia. Most of expatriates in the industrial hub of Jubail are doing business based on Saudi Government’s oil refinery projects. Saudi Arabia temporarily stopped most of the projects as part of public health safety measures to maintain social distance. 

“We are doing business based on oil refinery projects. Now projects are stopped. We brought around 1100 people on work permit visa on temporary basis. And also, we have around 1200 permanent workers. It is a big burden to provide them with food, accommodation and salary. It may cause a big loss for our company”, said owner of expatriates company, Sheikh Mohammed.

Saudi Arabia had reported first corona virus affected case in March 2, 2020. At the end of March, it was 1600 and now it already corssed 6000. Saudi Health ministry has cautioned the number of affected people may rise 10000 to 200,000 and directed for more precautionary measures. In such case, the Indian expatriates may have to face crisis in the region. 

Indian expatriate organizations are demanding for immediate intervention of Indian government to ensure better quarantine facility and treatment of NRIs in Saudi Arabia as the cases are increasing rapidly. The condition of laborers in some of the camps are such that seven to eight people should share a single bed room. 

“Normally if there is a flat, it will consist three to four bed rooms. In single bedroom companies will provide three four bunk beds and six to eight people should share the room. In such cases, if a person affected with virus it will spread quickly to others. Thus, Indian government should ensure quarantine facility for NRIs”, says Wasim Rabbani, president of Indian Social Forum, Eastern Region, Saudi Arabia. 

President of Karnataka Non Residential Indians, A forum for the NRI organizations of Karnataka, Zakaria Muzain says Indian Government should immediately interfere to bring back those stranded NRIs who wish to return home. Government should intervene to pressure Indian embassy to take the issues of troubled expatriates. 

“Government should make special flight arrangement for such NRIs in trouble. It should also arrange quarantine facility for those who return to India. Already there are many Non-Governmental charity organization which have come forward to give their facilities for NRIs”, he said. 

NRIs from all categories are looking forward for the help of Indian government. It is important to Indian government to take quick action as the problem is increasing in Saudi Arabia.

Washington, Apr 28: After nearly three weeks in an intensive care unit in Los Angeles, doctors treating 41-year-old Broadway actor Nick Cordero for COVID-19 were forced to amputate his right leg.

The flow of blood had been impeded by a blood clot: yet another dangerous complication of the disease that has been bubbling up in frontline reports from China, Europe and the United States.

To be sure, so-called "thrombotic events" occur for a variety of reasons among intensive care patients, but the rates among COVID-19 patients are far higher than would be otherwise expected.

"I have had 40-year-olds in my ICU who have clots in their fingers that look like they'll lose the finger, but there's no other reason to lose the finger than the virus," Shari Brosnahan, a critical care doctor at NYU Langone said.

One of these patients is suffering from a lack of blood flow to both feet and both hands, and she predicts an amputation may be necessary, or the blood vessels may get so damaged that an extremity could drop off by itself.

Blood clots aren't just dangerous for our limbs, but can make their way to the lungs, heart or brain, where they may cause lethal pulmonary embolisms, heart attacks, and strokes.

A recent paper from the Netherlands in the journal Thrombosis Research found that 31 percent of 184 patients suffered thrombotic complications, a figure that the researchers called "remarkably high" -- even if extreme consequences like amputation are rare.

Behnood Bikdeli, a doctor at New York-Presbyterian Hospital, assembled an international consortium of experts to study the issue. Their findings were published in the Journal of The American College of Cardiology.

The experts found the risks were so great that COVID-19 patients "may need to receive blood thinners, preventively, prophylactically," even before imaging tests are ordered, said Bikdeli.

What exactly is causing it? The reasons aren't fully understood, but he offered several possible explanations.

People with severe forms of COVID-19 often have underlying medical conditions like heart or lung disease -- which are themselves linked to higher rates of clotting.

Next, being in intensive care makes a person likelier to develop a clot because they are staying still for so long. That's why for example people are encouraged to stretch and move around on long haul flights.

It's also now clear the COVID-19 illness is associated with an abnormal immune reaction called "cytokine storm" -- and some research has indicated this too is linked to higher rates of clotting.

There could also be something about the virus itself that is causing coagulation, which has some precedent in other viral illnesses.

A paper in the journal The Lancet last week showed that the virus can infect the inner cell layer of organs and of blood vessels, called the endothelium. This, in theory, could interfere with the clotting process.

According to Brosnahan, while thinners like Heparin are effective in some patients, they don't work for all patients because the clots are at times too small.

"There are too many microclots," she said. "We're not sure exactly where they are."

Autopsies have in fact shown some people's lungs filled with hundreds of microclots.

The arrival of a new mystery however helps solve a slightly older one.

Cecilia Mirant-Borde, an intensive care doctor at a military veterans hospital in Manhattan, told AFP that lungs filled with microclots helped explain why ventilators work poorly for patients with low blood oxygen.

Earlier in the pandemic doctors were treating these patients according to protocols developed for acute respiratory distress syndrome, sometimes known as "wet lung."

But in some cases, "it's not because the lungs are occupied with water" -- rather, it's that the microclotting is blocking circulation and blood is leaving the lungs with less oxygen than it should.

It has just been a little under five months since the virus emerged in Wuhan, China, and researchers are learning more about its impact every day.

"While we react surprised, we shouldn't be as surprised as we were. Viruses tend to do weird things," said Brosnahan.

While the dizzying array of complications may seem daunting, "it's possible there'll be one or a couple of unifying mechanisms that describe how this damage happens," she said.

"It's possible it's all the same thing, and that there'll be the same solution."