We will blast store: Karachi Bakery’s Bengaluru outlet receives threat over name row

Mangaluru, May 20: In a gut-wrenching tragedy, a Class 10 student who was preparing for the final examinations drowned in Adyapady dam on the outskirts of the city yesterday.

The victim is Mallik, 17, a resident of Mulur village in Gurpur. The tragedy occurred when Mallik along with some others had come to the dam to catch fish.

According to the police, he accidentally slipped into the waters and drowned. His body was recovered later. 

Jurisdictional Bajpe police have registered a case of unnatural death and investigations are underway.

Mangaluru, Jul 2: A BJP MLA in Dakshina Kannada has tested positive for covid-19.

Dr Bharat Shetty, who represents Mangaluru North Assembly constituency, took to Twitter to confirm the news.

“I have been tested covid-19 positive. With all your blessings, I'm recovering and will be under treatment for few days,” he tweeted. 

He also requested the people to maintain social distancing, wear masks while going out and wash hands frequently.

I have been tested COVID19 positive.
With all your blessings, I'm recovering & will be under treatment for few days.

Requesting everyone to please maintain social distancing, wear mask while going out and wash hands frequently.
Please take care of yourselves & your near one's.

— Dr Bharath Shetty (@bharathshetty_y) July 2, 2020

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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