RSS worker, accused in neo-convert Anil Faisal murder case, hacked to death

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Belgaum, Mar 26: The police on Thursday thrashed people who had gone to offer prayers at a mosque despite the nationwide lockdown in force.
In a video, the police personnel can be seen thrashing the people with batons while they were leaving after offering prayers at a local mosque here.
In another incident in Rajasthan's Pratapgarh, the police made few youngsters hop along a road and even gave the 'murga,' punishment to a few of them for violating the restrictions.
Similarly in Uttar Pradesh's Budaun, the police made people hop along a road with their bags strapped on their backs as a punishment. The people were possibly going to their native places.
In the video of the Budaun incident, a few men can be seen being made to hop along the road with a stick-wielding policeman keeping a watch.
SSP Budaun told ANI that an investigation is being conducted into the incident and expressed an apology for the police's behaviour.
Prime Minister Narendra Modi had announced a 21-day countrywide lockdown to check the spread of coronavirus, saying that "social distancing" is the only option to deal with the highly contagious disease.

Mangaluru, Apr 14: Karnataka Chief Minister B S Yediyurappa today wished the people of Tulu Nad a Happy Bishu in Tulu language.

Yediyurappa took to Twitter on Tuesday and wrote in Tulu, 'Happy Vishu to everyone! A new year brings new hope and new energy. May the coming year bring good health and well-being in everyone’s lives.'

Bishu – the traditional New Year for the Hindus in Dakshina Kannada and Udupi, which begins from Tuesday is believed to signal the arrival of good luck and fortune for the coming year.