Trump fires chief US lawyer who defied him on migrant ban

Paris, Mar 2: A global agency says the spreading new virus could make the world economy shrink this quarter, for the first time since the international financial crisis more than a decade ago.

The Organization for Economic Cooperation and Development says Monday in a special report on the impact of the virus that the world economy is still expected to grow overall this year and rebound next year.

But it lowered its forecasts for global growth in 2020 by half a percentage point, to 2.4 per cent, and said the figure could go as low as 1.5 per cent if the virus lasts long and spreads widely.

The last time world GDP shrank on a quarter-on-quarter basis was at the end of 2008, during the depths of the financial crisis. On a full-year basis, it last shrank in 2009.

The OECD said China's reduced production is hitting Asia particularly hard but also companies around the world that depend on its goods.

It urged governments to act fast to prevent contagion and restore consumer confidence.

The Paris-based OECD, which advises developed economies on policy, said the impact of this virus is much higher than past outbreaks because "the global economy has become substantially more interconnected, and China plays a far greater role in global output, trade, tourism and commodity markets."

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.

Washington, May 22: The deadly coronavirus came from China and the US is not going to take it lightly, American President Donald Trump said on Thursday.

"It came from China. We are not happy about it. We just signed a trade deal, the ink wasn't dry and all of the sudden this floated in. We are not going to take it lightly,” Trump said participating in a Listening Session with African-American Leaders in Michigan.

Trump in the last several weeks has been very critical of China's inability to control the spread of the novel coronavirus within its territory. By Thursday more than 94,000 Americans have died due to the coronavirus and over 1.6 million have tested positive.

He has so far not given any indication of the steps that he is contemplating taking against China.

Meanwhile, pressure is building on his administration, mainly from the Republican lawmakers on this.

On Thursday, Senators Ted Cruz and Rick Scott, along Mike Braun, Marsha Blackburn, Joni Ernst, Martha McSally and Tom Cotton, introduced the COVID-19 Vaccine Protection Act to prevent the Chinese Communist Party from stealing or sabotaging American COVID-19 vaccine research.

The bill requires a thorough national security evaluation and clearance by the Department of Homeland Security, the Department of State, and the Federal Bureau of Investigation of all Chinese student visa holders taking part in activities related to COVID-19 vaccine research.

"The same Chinese Communist Party that covered up the coronavirus outbreak also routinely engages in state sponsored theft of intellectual property," Cruz said. "We cannot allow China to steal or interfere with American research and development of a vaccine,” he added.

"Communist China is responsible for the coronavirus pandemic, and their lies and misinformation cost American lives," Scott said.

"We cannot let Communist China off the hook for this, and we absolutely cannot allow Communist China to steal or sabotage any American research efforts related to the Coronavirus vaccine. The COVID-19 Vaccine Protection Act protects American efforts to create a vaccine as we work to end this pandemic," he added.

The COVID-19 Vaccine Protection Act, among others requires an enhanced vetting of nationals of the Chinese nationals in the US as nonimmigrants under F, J, or M student visas to determine if any student visa holders are a national security threat.

Once the review is complete, authorizes Department of Homeland Secretary, in consultation with other agencies, to continuously monitor all nonimmigrant student visa holders (F, M, J) who are Chinese nationals while in the US and are engaged in, or have access to, the research of any potential COVID-19 vaccine or COVID-19 related material.

Republican Whip and Ranking Member of the Select Subcommittee on the Coronavirus Crisis Steve Scalise alleged that China lied to the world on coronavirus.

"During a critical period in December and January, China withheld evidence of the virus: evidence that confirmed human to human transmission of the virus, evidence of the extent of the spread. China refused entry of American and other medical experts from around the world for weeks,” he said.

“And during this time, China hoarded medical supplies like masks, gowns, and other life-saving PPE. Chinese exports of surgical masks, gowns, and gloves were stifled by the Chinese Communist Party during this period. China knew the danger posed by the virus and while they hid the truth, they used the time to stock up on vital medical supplies,” Scalise said.

“While Chinese authorities limited domestic flights from Wuhan to other Chinese cities like Beijing and Shanghai, China's government urged international carriers to maintain their flight schedules — seeding the virus throughout the rest of the world,” he alleged.