BM Farooq is the richest among Rajya Sabha candidates

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Udupi, Apr 5: Excise Department has formed a special patrol teams to check the illegal sale of liquor in the district during the lockdown period.

All liquor stores are closed till April 14 in view of the lockdown to contain Covid-19 spread. However, reports of liquor being sold illegally have come to the notice of the Excise Department.

In a stern warning, the department has stated that officials will verify the closing and opening stock at the liqour stores and if any discrepancy is found the violators will be penalised. The department has received over 20-30 calls regarding the illegal sales.

Shivamogga, Feb 4: Students of a government primary school which is built especially for the children of manual scavengers, have been facing tough times during classes as the filthy drainage passing through the school premises excrete human excreta and sludge.

The drainage passes through GSPL Scavenger's Colony School in Shivamogga city, located behind the state road transport corporation's bus stand (KSRTC).

According to the locals here, students studying in this school often fall sick due to the waste flowing from the drainage.

Penchelayya, the father of a child who studies in the same school said, "Human excreta floats in the drainage as it is connected to two toilets. The school stinks and students often fall sick due to the drainage."

The students studying here are unable to bear the foul smell emanating from the drainage which flows at the school's premises.

He added that waste from private bus stands is dumped in this drainage which ultimately flows here creating an extremely unhygienic environment for the people living here and students studying in this school.

He further claimed that the government is not ready to listen to their grievances.