Quran for all' month-long campaign launched in Udupi

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Mumbai, Mar 16: Shri Sai Baba sansthan trust on sunday appealed to devotees to postpone their visit to Shirdi for a few days in view of coronavirus outbreak in the country.

"As per the directives of the government, I request the devotees to postpone their visit to Shirdi for a few days," said Arun Dogre, Chief Executive Officer of Shri Sai Baba sansthan trust, Shirdi.

On Saturday, the Siddhivinayak temple located in Prabhadevi has instructed all its employees to wear masks, while hand sanitizers have been provided to everyone inside the temple.

Speaking to news agency,Siddhivinayak trust chairman , Adesh Bandekar had said, "We are providing sanitizers to all the devotees in the temple and where they stand in a queue holding the railings, are being cleaned in every 30 minutes."

Coronavirus, which originated in China's Wuhan city, has so far spread to more than 100 countries infecting over 1,20,000 people. In India, 107 persons, including foreign nationals were tested positive till March 15 at 12 pm.

Mangaluru, Apr 23: Playing the role of a good samaritan, the owner of a commercial complex and houses has waived off a month’s rent at Panemangalore in Bantwal.

B H Complex owner Mohammed Hassan has waived the rent of 21 shops and 12 houses in the complex. Due to Lockdown, people are without jobs and are struggling to eke out a living and Mr Hassan's good gesture helps them.

Hailing from Barimaru, Mr Hassan, who was working in foreign country, has come down and settled here. He had constructed houses and commercial complex and was living on the rent he was receiving.