ED notice to B M Farookh over FEMA violation

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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: A woman has sustained burns on the left hand and the left chest in a vicious acid attack that occurred as she walked home in Mallappa Layout, Seegehalli, near KR Puram in Bengaluru.

Prabhavathi, the victim, and her husband, Radhakrishna Reddy, own an acre and six guntas of land in Seegehalli. They had constructed 20 houses on the parcel and rented them while keeping the rest of the land empty and building a boundary wall around it, according to a senior police officer. 

Four men named Ravi, Kumar, Ashirvadam and Shekar laid claim to the land and demolished the boundary wall two years ago. When the couple approached the cops, Manjunath, a sub-inspector from KR Puram police station, visited the spot along with other officers and allegedly abused Reddy and his family. 

Reddy then approached a senior police officer who suggested that he file a complaint against the sub-inspector as well as his rivals for threatening the family. The case is pending in a case. 

On January 7, Ravi, along with four others — Raghu, Kabalan, Ashrivadam and Munireddy — mocked Prabhavathi as she walked home. They asked her to withdraw the complaint. When she ignored them, one of the men motioned to another person. In a flash, a man in the group threw acid on Prabhavathi. The liquid fell on her left hand and left chest, gashing them. Her screams drew her family who rushed her to a hospital. 

Reddy said the suspects had been intimidating them to sell the remaining land. He accused the KR Puram sub-inspector of “threatening” the family.

According to Reddy, following their complaint, a departmental enquiry was launched against the sub-inspector and his promotion was stalled. He suggested that the suspects had used the acid attack as a weapon to “silence” and force them into withdrawing the complaints. 

Following the acid attack, KR Puram police booked eight people — Ravi, Raghu, Kabalan, Ashirvadam, Munireddy, Sachin, Rahul, and Kumareshan — under IPC sections 326 (a) (acid attack) and 506 (criminal intimidation). Efforts are on to track them down. 

Mangalore, Feb 4: Final chance to present evidence and record eyewitness statements with the Deputy Commissioner of Udupi G Jagadeesh regarding the December 19 violence will be held on February 6 between 1100 and 1300 hrs.

Eyewitness and evidence presenters can depose at the Assistant’s Commissioner’s Court Hall in the Mini Vidhan Soudha in the city.

The Deputy Commissioner said that no evidence would be accepted after this last round of public hearing.