Terrorism caused by distortion of religion, misguided belief: Swaraj tells OIC

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Karnataka, Mar 18: Karnataka State Cricket Association (KSCA) has asked its administrative staff to work from home until further order amid coronavirus outbreak.

KSCA has taken various measures to mitigate the risk of spreading coronavirus. The association had already closed down all section of the sports centre and also given off to all the sports centre staff from March 14.

"Ksca had already closed down all section of the sports centre and also given off to all the sports centre staff w.e.f 14th March 2020. Further to that, now it is decided that most of the KSCA administrative staff will be working from home until further orders," KSCA Treasurer and official spokesperson Vinay Mruthyunjaya said in a statement.

"All the KSCA employees have been advised strictly to be at home and should not travel and be available on phones and mails. However skeleton staff will be deputed at KSCA to make sure ongoing works like grounds maintenance, regular maintenance etc., is not affected," he added.

Mangaluru, June 10: The first direct repatriation flight from Damma to Mangaluru International Airport under Vande Bharat Mission will be operated on June 21.

Thousands of people from coastal districts of Karnataka are stranded without flights in different parts of Saudi Arabia after the announcement of covid lockdown in March this year. 

Even though the government of India launched Vande Bharat Mission to repatriate Indian expatriate through special flights, no flight was scheduled from Saudi Arabia to Mangaluru.

Several organisations had exerted pressure on the government of India and government of Karnataka to bring back stranded Kannadigas from Saudi Arabia.  

With the sole intention of helping the stranded Kannadigas, a few philanthropists in Saudi Arabia last month formed an NGO called Saudi Kannadigas Humanity Forum under the leadership of Zakariya Bajpe and Sheikh Expertise.