Girl dies after snake-bite while preparing to worship serpent god'

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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 23: As many as 600 people who arrived from foreign countries are under the surveillance of the district police in the Dakshina Kannada, as a measure to contain the spread of Covid-19, said Superintendent of Police B M Laxmi Prasad on Monday.

The police personnel are visiting their houses in Dakshina Kannada police jurisdiction. They have been asked to remain quarantined at home for 14 days."We have appealed to the local residents to tip the police if they violate the quarantine period,"he added.

Talking to newsmen here, he said that all the roads in border areas connecting Kerala had been closed, the police have strengthened security in border areas. Please log in to get detailed story.

Ballari, Jan 5: Thousands of Muslims, joined by the members of various organisations, on Saturday staged a massive protest in the town condemning the provocative speech by Bellary MLA G Somashekar Reddy.

The police caned the agitators after they tried to lay siege to the house of BJP legislator.

The protesters holding national flag took out a rally from Kaul Bazaar, which passed through the major streets, and culminated at Gadagi Channappa Circle. They raised slogans against the BJP and burnt the effigy of Somashekar Reddy.

The protest sent the traffic haywire Gadagi Channappa Circle and the cascading effect of it was seen across the town. SP C K Babu told the agitators that the MLA has been booked for making provocative speech and pleaded them to hold a protest at Municipal College grounds. But the agitators were in no mood to relent.

Inspector General (Bellary Range) I G Nanjundaswamy has rushed to the town to oversee security. The BJP MLA on Friday made inciting remarks against minorities during his speech at a pro-CAA rally in the town.

FIR against Reddy

The Gandhinagar police in the town on Saturday registered an FIR against MLA Somashekar Reddy, for making a provocative speech, under IPC Sections 153 A (promoting enmity between two religions), 295A (insulting religious beliefs) and 505B.

During his speech at a pro-CAA rally on Friday, Reddy had said, "Hindus are 80% of the population while minorities are 17%. What will happen to you if we hit back? Hence, you should be very careful about your moves and steps."

The legislator came down heavily on those staging protests against CAA in Ballari. "We won't keep quiet if another protest is staged against the CAA. Each Hindu is like Shivaji. Nobody will be alive if all Hindus come out to streets holding swords," he had said.