BJP did not purchase us: Disqualified MLA BC Patil

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Mangaluru, Mar 25: In the wake of coronavirus outbreak, Nalin Kumar Kateel, Member of Parliament today declared that the coastal city of Mangaluru will remain completely shut tomorrow, (March 26) onwards.

"Today the people were given time to go out of their houses to buy essentials today. But from tomorrow, this will not be allowed," the MP said. 

"We are discussing with officials of all departments about ways to manage the situation. Essential things and facilities people need, will be delivered at their doorsteps. We are sorting out how to deliver the items on behalf of the government and mode of delivery of items to apartment complexes," he said.

He said that a large number of patients from Kasaragod had come into the city yesterday. Hence, the district administration has taken a decision, he said.

"Under the present circumstances, the hospitals in the city would not be sufficient for our purpose. So the administration will not allow any vehicles including ambulances into the city. All the ambulances would be blocked from entering Dakshina Kannada district at Talapady border and sent back," he said.

Bengaluru, Jan 30: A kidnap case in Bengaluru has proved that crime-based series on TV channels can inspire youth to commit crimes. 21-year-old Chirag R Mehta, who kidnapped a schoolboy and got arrested within an hour after demanding Rs 5 lakh ransom, has told police that he thought of abducting the boy after watching Crime Patrol, a popular Hindi crime anthology series created by Subramanian S. lyer for Sony TV. The kidnapped schoolboy was rescued by the police and reunited with his parents. Son of a gift shop owner from Basavanagudi area in Bengaluru, Chirag has reportedly told police that decided to make some quick money to spend on cricket betting and gambling after learning kidnap tricks from the ‘Crime Patrol’. According to police, Chirag reached a private school around 3pm on Tuesday on a Bounce rental bike and zeroed in on a fourth standard student who was walking out of school. He told the boy he was his father's friend and that he required help to search for a relative who had gone missing. The boy believed Chirag and rode pillion on the bike. Chirag then engaged the boy in conversation and learnt about his father's business and got his mobile phone number. He then made a call to the boy's father, demanded Rs 5 lakh and warned him against approaching cops. However, the boy's father alerted Cottonpet police and special teams were formed to crack the case. While Cottonpet inspector Venkatesh TC's squad verified CCTV footage in and around the school, Chamarajpet inspector BG Kumaraswamy's team started tracking the suspect's mobile phone movements. An hour later, the suspect's location was traced to a hotel on the Lavelle Road-St Mark's Road stretch. Police rushed there, rescued the boy and arrested Chirag.