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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Thiruvanthapuram, Feb 21: Rape-accused Bishop Franco Mulakkal has been accused of sexual abuse by another nun. Police sources say that there is at least one more nun who has given a statement of sexual assault against the bishop.

This nun is a witness in the rape case registered against Franco Mulakkal. She is the 14th witness in the case and in her statement, she said that the bishop made sexually-colored and lewd remarks to her over the phone.

As per the nun, they were in communication via phone calls, chat and video calls for a period of two years from 2015 to 2017.

In the statement, the nun said that she kept quiet as she was scared of the bishop.

In her witness statement in September 2018, she said that in 2017, the bishop visited the convent she was in and hugged and kissed her.

Police say that the witness was not ready to file a complaint against the bishop. They had alerted the police in the jurisdiction and when the team met her, she refused to file a complaint. Hence a separate case wasn't registered against Bishop Franco

The first nun of Missionaries of Jesus had accused Franco of raping her multiple times at the Kuruvilangadu convent in Kottayam. The FIR in the case was registered in June 2018.

Then after protests, Franco was arrested on September 21, 2018.

The chargesheet in the case was submitted in April 2019. In the chargesheet, Bishop Franco Mullackal has been charged under various sections of the IPC: 342 (wrongful confinement), 376 (2k) (rape on a woman incapable of giving consent), 376 (2n) (causing grievous bodily harm during rape), 376 (c) (a) 377 (unnatural offence) and 506 (1) (criminal intimidation).

Shivamogga, May 21: A quarantine facility at Bapuji Nagar in Shivamogga on Wednesday evening was vandalised, by a group of people. leading to chaos.

The police had to resort to baton-charge to control the situation.

Locals were opposing the facility, which is being used to isolate travellers from different states in the view of coronavirus.

Deputy Commissioner KB Sivakumar said that the police department will investigate and book a case against the protesters.