3 deaths: Victim screams for help after accident; onlookers click selfies till he dies

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.

Noida, Jan 6: A fire broke out at the ESIC Hospital in Noida on Thursday morning and firefighting was underway, officials said.

The blaze broke out in the basement of the seven-storey hospital building located in Sector 24, a police official said.

Fire tenders were rushed to the spot after the Fire Department was alerted about it around 8 am, the official said.

After that, a search was done to see if anyone was trapped in the building, he said.

The cooling process is now underway.

He said the fire had engulfed the ground, first and second floors of the building, except the basement.

Police said they received information about fire at Kaveri printing press at 2:45 am, when the manager Yogesh called them. The press owners have been identified as Atul and Anuj Goyal, residents of Sukhdev Vihar, they said.

The man who died in the fire has been identified as Phool Dev, from Bihar, who used to work as a help there. Dev went inside the building in the night to sleep before the fire started and died due to suffocation, the fire department official said.

The body has been kept at Lal Bahadur Shastri Hospital and the post-mortem will be done once the family reaches here, police said.

New Delhi, Jun 8: Places of worship on Monday across the country reopened after staying shut since March due to the COVID-19 induced lockdown.

Scores of temples, mosques and gurudwaras were seen opening up keeping in view the Standard Operating Procedure (SOP) issued by Union Home Ministry to prevent coronavirus spread.

As per Ministry of Health guidelines, touching of idols/holy books, choir/singing groups, etc are not allowed.

In Delhi, people gathered at Gauri Shankar Temple in Chandni Chowk to offer prayers. With national capital seeing a rise in coronavirus cases, the devotees were seen wearing masks and taking precautions. People were also seen offering prayers at Kalka Ji Temple.

Several people arrived at Sri Bangla Sahib Gurudwara to offer prayers. Devotees were made to pass through the disinfectant tunnel before entering the Gurdwara in order to prevent the virus.

In Uttar Pradesh, Chief Minister Yogi Adityanath offered prayers at Gorakhnath Temple after state government allowed re-opening of places of worship from today.

Devotees were seen offering prayers at Eidgah Mosque in Lucknow.

Devotees also offered prayers at Shree Dodda Ganapathi Temple in Basavanagudi, Bengaluru.

Hanuman Garhi Temple in Ayodhya also reopened on Monday.

Prayers were offered at Durga Mata Mandir near Jagraon Bridge in Ludhiana, as the government has allowed reopening of places of worship.

Although religious places have opened in most of the states, however, there are some states which are yet to do so.

Preparations related to Yatra of Char Dhams including Badrinath have been completed, however, local representative of the areas from where the routes of this yatra pass have requested the government to not allow the commencement of the Yatra.

Based on the assessment of the situation, the Odisha Government ordered that all religious places/places of worship for the public will continue to remain closed till June 30.

Earlier, the Union Ministry of Home Affairs (MHA) said that religious places and places of worship for public, hotels, restaurants and other hospitality services along with shopping malls will be permitted to open from June 8.

However, these facilities will not be able to resume operations inside containment zones designated by authorities in states.