Karnataka will urge Modi govt to ban SDPI: CT Ravi

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Mar 12: Karnataka Deputy Chief Minister Dr CN Ashwathnarayan on Wednesday said rumours that the state government has asked offices to remain closed tomorrow are false.

He clarified that the government has asked employers to explore the option of work from home amid the coronavirus scare.

"The rumours that the Govt has asked offices to remain closed tomorrow are false. We have asked employers to explore options of work from home for their employees. Let us be vigilant about this issue and not fall prey to any such rumours," Ashwathnarayan tweeted.

Meanwhile, Safdarjung Hospital in Delhi has cancelled all seminars, workshops or conferences in the premises in the wake of coronavirus spread.

"All the functions including seminars, workshops, conferences are to be cancelled. This is for urgent and necessary compliance," officials from the hospital said.

Kolhapur, May 27: Praising the Muslims of Ichalkaranji town in the Kolhapur district for making invaluable contribution for setting up of a new intensive care unit in Indira Gandhi Memorial (IGM) hospital for treatment of corona infected patients, Maharashtra Chief Minister Uddhav Thackeray has said that with this donation, they have set an ideal example before the country.

While dedicating a 10-bed ICU unit at IGM hospital online from Mumbai, during Eid al Fitr, Mr Thackeray said that by donating Rs 36 lakh for ICU unit at IGM hospital, the Muslim community has set an ideal example before the country as to how to celebrate the festival.

The Muslims of Ichalkaranji made the donation following an appeal by the state government about avoiding unnecessary expenses for celebrating the Eid.

Minister of State for Health Rajendra Patil-Yadravkar, MP Dharysheel Mane, MLAs Prakash Awade and Raju Awale, district collector Daulat Desai, district superintendent of police Dr Abhinav Deshmukh, Zilla Parishad chief executive officer Aman Mittal, district surgeon Dr B C Kempipatil and others were present on the occasion.