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Washington, Mar 26: Indian-American hoteliers have come forward to rescue the stranded Indian students in the US following implementation of lockdown measures in the country in response to the rapidly-spreading coronavirus pandemic, offering them free accommodation and free meals.

With the students scrambling for a roof over their heads after being asked to vacate their hostels and India banning international flights for a week from March 22 due to the coronavirus pandemic, more than 6,000 rooms in nearly 700 hotels were offered to them by Wednesday following a call from the Indian Embassy.

The Indian Embassy have been running a round-the-clock helpline since last week for the students in the US, who number over 2,50,000.

Most of these hotels offered are in and around universities and colleges, but the hotel owners from across the country have come up in large numbers to the call given by community leaders, who have roped in Asian American Hotel Owners Association (AAHOA) for the purpose.

India's Ambassador to the US Taranjit Singh Sandhu said in a tweet, "It is heartening to see that Indian; Indian-American and other hotel owners are coming forward to help people with accommodation in these testing times. Together we can overcome the fight against COVID19!"

"The Indian community has come together to help the student and many hotel owners have offered their rooms free of cost to them. Many of them are also offering free meals to these students," Chicago-based community leader Nirav Patel told PTI.

Indian-American hotelier couple K K Mehta and Chandra Mehta have offered more than 100 rooms to Indian students at their two prime properties each near the Times Square and Barclays Center in New York City, said Jaipur Foot USA chairman Prem Bhandari on behalf of the hotels.

The Indian Consulate in New York had contacted them about this 10 days ago, he said.

"These students are the future of both India and the United States. All the top Indian-American CEOs, scientists and doctors came to this country as a student. It's our moral duty to help them with our resources," Bhandari said.

Regional director of AAHOA Upper Midwest Kalpesh Joshi said they had created a master list of the availability hotel rooms, which was being constantly updated.

Free accommodation would be allocated in coordination with the Indian Embassy and its consulates, he said.

"The Indian Embassy and its consulates are working tirelessly to get these students rooms," he added.

Joshi has also sent out a video message to his hotelier colleagues: "Because of the coronavirus outbreak, our Indian students in the US are out of shelter. Let's work together. As a hotelier, I would like to request all my hotelier friends to come forward... let's provide some rooms to the students."

Boston-based Computer Society of India (North America) has collaborated with AAHOA to help students and Indian IT professionals searching for emergency accommodation due to the COVID-19 lockdown.

Anyone who is having financial hardship will be given hotel accommodation either free of cost or the rates will not be more than USD 50, said the Computer Society of India (North America).

Minesh Patel, the chairman of Virginia Asian American Store Association, said between Richmond, Norfolk, and Virginia Beach, Indian-American hotel owners can help in arranging accommodation for over 500 Indian students.

Florida-based Vipul Patel, the national president of Asian American Store Owners Association, said support for the Indian students have been pouring in from the Indian-American hoteliers.

"I have not come across any hotel owner who said no to us," Patel said.

Rooms would be allocated to students on the recommendation of the Indian Embassy and its consulates in Houston, Chicago, Atlanta, San Francisco and New York.

The Indian Consulate in New York was the first to take a lead in this regard. It has worked with Hammock Worldwide Hotels and Resorts to provide temporary accommodation for the students at a flat rate of USD 50 per night.

Joshi said that initially there was a suggestion to charge a convenience fee of USD 20-25 per day from the students.

"But when a few of them offered free rooms and free meals, everyone agreed to it," he said.

According to Johns Hopkins University coronavirus tracker, the number of deaths caused by the novel coronavirus in the US rose to 1,031 with 68,572 confirmed cases. The US has the third highest number of confirmed cases behind China and Italy.

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.

Beijing, Feb 9: After making sure everyone's face mask is on and sanitizer is to hand, the Qiao family heads out to Jingshan Park, a former royal sanctuary beside the Forbidden City in China's capital Beijing.

Snow has fallen for a second day, a rare event in the city of 21.5 million that would normally bring hundreds of thousands of people out to take photos and play. But the streets are empty and the parks are so quiet the only sound is of birds chirping.

It's not just Beijing. Shanghai, China's financial hub, and other cities in the world's most populous nation have turned into ghost towns after the government extended a holiday and asked residents not to go out because of the coronavirus.

"We know the situation of the coronavirus is severe. But the epicentre is far away, so we think it should be fine here ... It's a God-given chance to enjoy this family moment with snow and without work," said Mr Qiao, who has an 11-year-old daughter.

The epidemic has killed 722 people and infected nearly 32,000 in China as of February 8. More than three-quarters of the cases are in the central Hubei province where the virus originated - more than 1,000 km (620 miles) from Beijing.

Only a few people are brave enough to come out. A security guard at Jingshan Park said there were less than a third of the number of tourists than usual, even with the rare snowfall.

Even at one of the best spots for snapping photos of snowy Beijing just outside the Forbidden City, there's barely a crowd, while the usual tour buses and groups of people speaking different dialects are nowhere to be seen.

"Last year when it snowed, I took a few hours off work to come down here to take a picture and the crowd was several layers deep," said a man in his 30s who gave his surname as Yang. "But this year, I am not at all worried about finding a space to take a photo. The virus is keeping people indoors."

Security guards along Wangfujing street, a popular pedestrianised shopping area in downtown Beijing, said it was normally so crowded during the holiday period that it was hard to move around.

"Look at it now, there are more security guards and street cleaners than tourists!" said one of the guards.

Businesses, including shops, bars and restaurants, have been severely hit by the epidemic as the government has banned mass gatherings and even group meals in an effort to curb the spread of the coronavirus.

"You would have to wait outside for a table on a normal day," said a waitress at a restaurant with more than 50 tables. Just five were taken at the peak lunch hour.

Only a handful of the more than 100 restaurants along Beijing's famous food street, Guijie, were open, and the remaining outlets were wondering how long they can hold out.