Six feet distancing not enough to stop coronavirus transmission in light winds: Study

News Network
May 20, 2020

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.

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News Network
January 12,2020

Ahmedabad, Jan 12: Union Home Minister Amit Shah on Saturday unveiled over 5.5 lakh postcards written by Ahmedabad residents to Prime Minister Narendra Modi, thanking him for the Citizenship (Amendment) Act.

The postcards were stacked on the dais as Shah addressed a gathering of BJP workers who formed letters `C A A’ in front of him.

The state BJP claimed that the party’s “largest awareness campaign” in support of the CAA had found a place in Limca Book of Records and World Record of India.

“It is not just words but a letter of thanks written from the heart. Our public outreach programme is a reply to the lies being spread against the CAA,” Shah said addressing BJP workers from his former Assembly constituency Naranpura.

The BJP had promised to enact the CAA in its manifesto, he said, asking why the Congress did not oppose it then.

Targeting Rajasthan Chief Minister Ashok Gehlot, Shah said, “Congress has a government in Rajasthan. The Congress party in that state had promised that Hindus and Sikhs from Pakistan would be given citizenship.

“Why do you oppose it when we fulfill the promise made by you?” the Union home minister asked.

“In 2006 and 2009, Ashok Gehlot wrote a letter for the same. We covered Hindus, Sikhs, Parsis, Christians, all of them under the Act, you had only mentioned Hindus and Sikhs,” Shah claimed.

Saying that Prime Minister Narendra Modi, by bringing in the CAA, granted “human rights to lakhs of people”, he asked why opposition was against it.

He challenged “Rahul Baba” (Congress leader Rahul Gandhi), Mamata Banerjee and Arvind Kejriwal to show if any provision of the CAA took away the citizenship of Indian Muslims.

“There is no such provision. Lakhs and crores of people have come to India from Pakistan, Bangladesh to save their religion, their self-respect, to save themselves. Where else will they go?” he asked.

“From the first prime minister of the country Jawaharlal Nehru to the first home minister, first president of the country, and Mahatma Gandhi himself had said that whoever comes to India from Pakistan will be granted citizenship. Hindus, Sikhs, Buddhists and Jains coming from Pakistan have nowhere else to go,” he said.

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sompady
 - 
Sunday, 12 Jan 2020

From this figure its clear that most of BJP mebers are aganst CAA, Becuase its below 0.5% from Indian population.

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News Network
April 8,2020

Washington, Apr 8: President Donald Trump has threatened to put a "very powerful" hold on US' funding to the World Health Organization, accusing the UN agency of being "very China centric" and criticising it for having "missed the call" in its response to the coronavirus pandemic.

Trump slammed the global health agency for its early guidance aimed at countering the international spread of the coronavirus.

"We're going to put a hold on money spent to the WHO. We're going to put a very powerful hold on it and we're going to see. It's a great thing if it works. But when they call every shot wrong, that's no good," Trump told reporters at his daily White House news conference on Tuesday.

The Geneva-headquartered World Health Organization (WHO), receives vast amounts of money from the United States.

"We pay for a majority or the biggest portion of their money. They actually criticized and disagreed with my travel ban at the time I did it. They were wrong. They've been wrong about a lot of things. They had a lot of information early and they didn't want to - they're very - they seem to be very China centric," Trump said.

The president said his administration was going to look into the US funding to the WHO.

"We give a majority of the money that they get, and it's much more than the USD 58 million. USD 58 million is a small portion of what they've got over the years. Sometimes they get much more than that. Sometimes it's for programs that they're doing, and-it's much bigger numbers. If the programmes are good, that's great as far as we're concerned," he said.

"But we want to look into it, WHO, because they called it wrong. They (WHO) called it wrong. They missed the call. They could've called it months earlier. They would have known and they should have known and they probably did know. So, we'll be looking into that very carefully, and we're going to put a hold on money spent to the WHO," Trump said.

Meanwhile, Senator Jim Risch, chairman of Senate Foreign Relations Committee, called for an independent investigation into the WHO's handling of the COVID-19 response.

"The WHO has failed not only the American people, it has failed the world with its flagrant mishandling of the response to COVID-19," said Risch.

WHO Director general Tedros Adhanom Ghebreyesus' apparent unwillingness to hold the Chinese Communist Party to even the minimum standard of global health and transparency hindered the world's ability to blunt the spread of this pandemic, he said.

"It is completely unacceptable that the world's global health organization has become a political puppet of the Chinese government," he alleged, adding that "an independent investigation into the WHO's handling of the COVID-19 response is imperative."

The United States is the largest contributor to the WHO.

"Our valuable tax payer dollars should go towards investments to prevent the spread of disease, not to aid and abet cover-ups that cost lives and isolate portions of the world's population on political grounds, as has been the case with Taiwan," Senator Risch said.

A bipartisan group of nearly two dozen lawmakers announced Tuesday to introduce a resolution to defund the WHO until Ghebreyesus resigns and an international commission investigates the organisation's role in covering up the Chinese Communist Party's failed COVID-19 response.

"The WHO helped the Chinese Communist Party hide the threat of COVID-19 from the world and now more than 10,000 Americans are dead, a number that is expected to rise dramatically in the coming weeks," Congressman Guy Reschenthaler alleged.

"The United States is the largest contributor to WHO. It is not right that Americans' hard-earned tax dollars are being used to propagate China's lies and hide information that could have saved lives. This bill will hold the WHO accountable for their negligence and deceit," he asserted.

The United States' intelligence community has reported that the Chinese government hid the threat of COVID-19 and, as a result, made it difficult for the rest of the world to respond early, appropriately and aggressively, said Congressman Fred Keller.

"For reasons beyond understanding, the WHO acted as a silent partner in this effort instead of protecting the lives of millions across the world, including hundreds of thousands of American citizens. Our hard-earned tax dollars should not go to a global organization more concerned with not offending the Chinese government than providing accurate information and protecting innocent lives," Keller said.

Senator Marco Rubio accused the Chinese Communist Party of using WHO "to mislead the world."

"The organisation's leadership is either complicit or dangerously incompetent. I will work with the Trump Administration to ensure that WHO is independent and has not been compromised by the CCP before we continue our current funding, he added.

According to Johns Hopkins University, there are over 1.43 million confirmed coronavirus cases across the world and over 82,000 people have died due to the disease. The US has nearly 400,000 infections, the highest in the world.

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News Network
February 6,2020

New Delhi, Feb 6: DMK Lok Sabha member M K Kanimozhi on Wednesday challenged popular actor Rajinikanth to raise his voice for Muslims, saying they have "already been affected" by the Citizenship (Amendment) Act and are protesting on streets against the law.

Reacting to his statements earlier in the day in Chennai that "CAA is no threat to Muslims" and "if they face trouble I will be the first person to raise voice for them," Kanimozhi, daughter of former Tamil Nadu Chief Minister M Karunanidhi, told news agency that "Muslims in India have already been affected due to CAA".

"Let him (Rajinikanth) come forward and raise his voice for the affected Muslims", she said.

She said the members of the community have been protesting as the law leaves out Muslims.,

Asked whether Rajinikanth, through this pro-CAA statement, was moving closer to the BJP, the MP from Tuticorin said, "What he has said is no different from the BJP's narrative which we have been listening in parliament for the last few days".

Under CAA, members of Hindu, Sikh, Buddhist, Jain, Parsi and Christian communities who came to India from Pakistan, Bangladesh and Afghanistan till December 31, 2014, to escape religious persecution there will not be treated as illegal immigrants, and be given Indian citizenship.

Rajinikanth had asserted that the legislation did not pose any threat to Muslims. He wondered as to how Muslims, who chose to stay back in India following Partition will be sent out of the country. Besides, the central government had assured that Indian people will have no issues in view of CAA, he noted.

He charged that some political parties were instigating people against the CAA for their selfish interests.

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