DVS skips quarantine, says he has to ensure medicine supply across country

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Mangaluru, July 18: The Dakshina Kannada district administration is likely to earmark a common burial ground in the wake of growing resistance from residents of various localities in Mangaluru against burial of Covid-19 victims in their vicinity.

Recently, following protests by residents on Bolar, the body of a Covid-19 victim remained in the ambulance for hours together. The residents refused to allow the victim to be laid to rest at a burial ground attached to a mosque. The victim, who had been a resident of Idya in Surathkal, was subsequently laid to rest after DC’s intervention.

In a bid to avoid such instances in the future, the district administration has identified a burial ground on the outskirts of Mangaluru. 

Former minister and incumbent Mangaluru MLA UT Khader said that he had discussed the problem at length with the officials of the Dakshina Kannada district administration, and had suggested they look for a relatively isolated space on the outskirts of Mangaluru city in order to avoid confrontation with the public.

“A parcel of land at Badaga Yekkuru, some 20km from the city has been identified as being suitable for the burial ground, but the district administration is yet to take a final decision,” Khader said.

Mysuru, Feb 1: The local police have arrested a man stabbed his irresponsible wife after she apparently hurt him with her naughty TikTok videos in Periyapatna of Mysuru district.

According to police, Srinivas stabbed his wife Savitha for TikTok videos where the latter featured with a different man.

The couple was not in good terms and was staying separately since few years. Savitha was residing in Mysuru and she used to send TikTok videos posing with another man to Srinivas.

The couple had two children, who reside with Srinivas, who was upset with the videos and invited Savitha to the birthday party of one of their children at Periyapatna.

He attacked her with a knife soon after she reached the function venue, Police said.