Two get death, Abu Salem, another get life term in 1993 Mumbai blasts case

Kolkata, Mar 9: A diabetic man died in the isolation ward of a hospital in West Bengal's Murshidabad on Sunday, a day after he was admitted there with suspected symptoms of coronavirus following his return from Saudi Arabia.

According to doctors, he was admitted to the hospital with fever, cough and cold.

Though test results of his blood and swab samples for novel coronavirus were awaited, it can be said that he died probably of diabetes, Director of Health Services Ajay Chakraborty told PTI.

"The man was highly diabetic and was on insulin. He returned home from Saudi Arabia and had no money to take insulin for the last three to four days.

"He was also suffering from fever, cough and cold. He was admitted to the isolation ward of the Murshidabad Medical College and Hospital yesterday and died today," the health services director said.

"We are waiting for the results of medical tests. The possibility of his death due to novel coronavirus infection is remote," he said.

However, precautions will be taken during the last rites of the victim according to the directives set by the central and state governments for patients who die of the virus, another senior official said.

"Family members will not be allowed to touch the body since the man had been suffering from cough and breathlessness. Those performing his last rites will be given protective gear, masks and gloves. Though test results are yet to be known, we do not want to take any chance," he said.

Meanwhile, the state health department has issued a directive to all private medical facilities to create a system for assessing all patients at admission allowing early recognition of possible COVID-19 infection and immediate isolation of patients with suspected novel coronavirus infection in an area separate from other patients.

New Delhi, May 29: With the highest spike of 7,466 more COVID-19 cases and 175 deaths reported in the past 24 hours, India's COVID-19 tally reached 1,65,799 on Friday, according to the Union Ministry of Health and Family Welfare.

The number of active coronavirus cases stands at 89,987 while 71,105 people have been cured or recovered and one patient has migrated, it said. The death toll due to the infection has reached 4,706 in the country.

Maharashtra is the worst affected state with 59,546 cases. Tamil Nadu has recorded as many as 19,372 cases while Gujarat and Delhi have recorded 15,562 and 16,281 coronavirus cases respectively.

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.