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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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Bengaluru, Jan 14: Assuring depositors that their money was "100 per cent safe" with the bank, Sri Guru Raghavendra Sahakara Bank Chairman K Ramakrishna in Bengaluru on Monday said 62 loans had locked up Rs 300 crore of deposit.

"Your money is 100 per cent safe with Sri Guru Raghavendra Sahakara Bank. It's my responsibility," Ramakrishna said at Sri Guru Narasimha Kalyanamandira auditorium, to assure depositors.

He was addressing angry customers of the bank at a public hearing. Due to the 62 dud loans, the Reserve Bank of India (RBI) had restricted the lender from executing business, Ramakrishna said amid shouting by depositors. The RBI has limited withdrawals by depositors to Rs 35,000.

"The bank is saying I can't withdraw more than Rs 35,000. In case of our fixed deposit maturing, we will have to renew it as we can't encash it, " said Nagaraj M, 49, who has been dealing with the bank for the past six years.

To assuage customers, the call to an assistant commissioner of police by Bengaluru South MP Tejaswi Surya -- not present -- was relayed on loudspeaker live and the MP claimed that he had spoken to Finance Minister Nirmala Sitharaman to help the customers.

Ramakrishna said he would meet customers again on January 19 with all the details and numbers. Dramatic scenes and pandemonium ruled the auditorium before his arrival. Thousands of bank customers threatened to go en masse to the police station and file a case against Ramakrishna.

As he addressed the gathering in Kannada, hundreds of depositors shouted back at him seeking clarifications. At the auditorium, thousands of depositors earlier demanded the bank chairman's presence to clarify the matter.

The lender had invited depositors to the auditorium at 6 p.m. to update them on the bank's status, following a RBI directive restricting the bank from doing business with immediate effect.

"We want the bank's directors here," shouted a depositor from the stage. A handful of policemen were trying to control the crowd and bring order to the assembly. Many elderly and retired persons had arrived to know the fate of their savings. Several women were also present at the meeting.

"It was a good bank with only 0.5 per cent NPAs. Now we can't trust any bank. See what happened with the PMC Bank," said another customer.

Shankar Sharma, 38, an employee of a private company, said majority of depositors were senior citizens and retirees. "I don't have an account with the bank, but my mother, uncle, aunt have deposited money in it. I came for them, " said Sharma. He said many of the bank's 35,000 clientele deposited more than Rs 5 lakh, which had total deposits of Rs 1,600 crore. The bank started operations in 1999.

Ramakrishna was escorted away to safety by the police after his speech even as the depositors were screaming and agitating for justice.

Saharanpur (Uttar Pradesh), May 19: Islamic seminary Darul Uloom Deoband has issued a fatwa asking Muslims to offer their Eid prayers this time at home, instead of congregating at mosques.

The directive comes amid a nationwide lockdown to slow down the spread of coronavirus.

Despite the relaxations announced in the lockdown, religious and other large gatherings are still banned.

The fatwa was issued in response to a query put to the seminary, its spokesman Ashraf Usmani said.

The fatwa said the Eid namaz can be offered in the same manner that the Friday prayers are now being read at home.

It said not holding the namaz in the usual manner is pardonable in circumstances such as these.