Former minister, statesman B A Mohideen no more

Bengaluru, Mar 21: All bars and pubs in Karnataka will remain closed from Saturday till March 31 as a preventive measure to tackle coronavirus spread, said state Chief Minister B S Yeddyurappa.

As per the government advisory, restaurants including cafes cannot serve food in-house and only takeaways will be allowed.

"All bars/pubs to remain closed from tomorrow till March 31 in Karnataka. In all city municipal corporations across the state, restaurants including cafes cannot serve food in-house, only takeaways will be allowed," said Yeddyurappa in a statement.

15 people have tested positive for COVID-19 in the state till now, said Karnataka Health Minister B Sriramulu on Friday.

The Minister told news agency that two COVID-19 patients, who are recovering, will soon be discharged from the hospital.

The total number of COVID-19 cases in India has now climbed up to 223, including 32 foreigners, the Union Health Ministry said on Friday. As many as 23 people have been cured of the infection in India.

The disease has claimed over 10,000 lives globally.

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.

The current physical distancing guidelines provided by the World Health Organisation (WHO) and by the US Centers for Disease Control and Prevention (CDC) may not be adequate to curb the coronavirus spread, according to a research which says the gas cloud from a cough or sneeze may help virus particles travel up to 8 metres. The research, published in the Journal of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.

Study author, MIT associate professor Lydia Bourouiba, warned that droplets of all sizes can travel 23 to 27 feet, or 7-8 metres, carrying the pathogen.

According to Bourouiba, the current guidelines are based on "arbitrary" assumptions of droplet size, "overly simplified", and "may limit the effectiveness of the proposed interventions" against the deadly pandemic.

 She explained that the old guidelines assume droplets to be one of two categories, small or large, taking short-range semi-ballistic trajectories when a person exhales, coughs, or sneezes.

However based on more recent discoveries, the MIT scientist said, sneezes and coughs are made of a puff cloud that carries ambient air, transporting within it clusters of droplets of a wide range of sizes.

Bourouiba warned that this puff cloud, with ambient air entrapped in it, can offer the droplets moisture and warmth that can prevent it from evaporation in the outer environment.

"The locally moist and warm atmosphere within the turbulent gas cloud allows the contained droplets to evade evaporation for much longer than occurs with isolated droplets," she said.

"Under these conditions, the lifetime of a droplet could be considerably extended by a factor of up to 1000, from a fraction of a second to minutes," the researcher explained in the study.

The MIT scientist, who has researched the dynamics of coughs and sneezes for years, added that these droplets settle along the trajectory of a cough or sneeze contaminating surfaces, with their residues staying suspended in the air for hours.

"Even when maximum containment policies were enforced, the rapid international spread of COVID-19 suggests that using arbitrary droplet size cutoffs may not accurately reflect what actually occurs with respiratory emissions, possibly contributing to the ineffectiveness of some procedures used to limit the spread of respiratory disease," Bourouiba wrote in the study