ED files prosecution complaint against Dr Zakir Naik, attaches properties worth Rs 50-cr

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Jun 19: The Karnataka government has been advised by its Educational Advisor to cancel holidays observed in educational institutions on the occasion of various Jayantis (birth annivesaries).

Advisor to Karnataka government on Education, Professor MR Doreswamy, has recommended cancellation of holidays on Jayanti and celebrate the day with more meaningful programmes remembering the great personalities.

The state government has declared public holidays on Valmiki Jayanti, Basava Jayanti, Kanaka Jayanti, Mahavir Jayanti, Ambedkar Jayanti and Gandhi Jayanti.

On Thursday, Doreswamy submitted a report containing seven key suggestions including cancelling holidays, to Deputy Chief Minister CN Aswath Narayan, who holds higher education portfolio.

Doreswamy in his report suggested to hold thematic workshops, lectures, conferences and other such activities to celebrate the life and works of the great personalities, instead of declaring holidays.

"It would not only educate our youth about the significance of the great personalities to our culture and society and also reinvents the tradition of paying tributes to their contributions to our civil society,'' he said.

Dr Narayan said that the decision on cancelling holidays on Jayanti's has to be taken by Chief Minister BS Yediyurappa.

Moreover, to bring education back on track during the present COVID-19 pandemic situation, Doreswamy made a few suggestions to complete exams of final semester engineering and graduate students. He also said that it was a challenge for the education sector to overcome the pandemic crisis and structure the next academic year 2021-22.

He also advised implementation of a mentoring system in all higher education institutions in Karnataka and empowering specially-abled students.

New Delhi, Jul 21: A 42-year-old contractual doctor, who was working with Delhi government's National Health Mission, passed away yesterday due to covid-19.

Dr Javed Ali had been on the frontline in the fight against the highly contagious illness since March. He tested positive for coronavirus on June 24 and was hospitalised for treatment over the next three weeks.

For the last 10 days, he was on a ventilator. Yesterday morning, Dr Ali breathed his last at the AIIMS trauma centre. He is survived by his wife and two children - a six-year-old son and a 12-year-old daughter.

"I am proud of my husband. He kept working till the end and he is a martyr. He did not take even one day off since March. He worked even on Eid," Dr Heena Kausar, his wife, told media persons.

The cost for the initial treatment at the private hospital was also borne by the family. "No treatment cost was covered when he was at a private hospital initially. We spent around Rs 6 lakh from our own pockets," she said.