Cong workers attempt to lay siege to BSY’s house; face resistances from BJP leaders

Mangaluru, May 1: Dakshina Kannada on Friday two more positive cases of coronavirus in the district, taking the total number of cases to 24.

According to the state health bulletin, the 62-year old husband of the 58-year old woman of Boloor who tested positive for COVID-19 on Thursday, also tested positive for the virus.

Another 69-year old patient hailing from Kasaba in Bantwal Taluk also tested positive for the infection.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Bhopal, Mar 10: Senior Congress leader Digvijay Singh on Tuesday parried questions on the exact number of MLAs supporting the party in Madhya Pradesh amid a political crisis triggered by the resignation of Jyotiraditya Scindia and 14 MLAs loyal to him.

Repeating his allegation that the BJP was trying to destabilise the Congress-led government, Singh told reporters that the BJP had arranged three chartered planes for Bengaluru on Monday to fly out some MLAs loyal to Scindia.

"We want to know why Bengaluru is used every time to destabilise governments?" he questioned.

When asked about the number of MLAs supporting the Congress in the current political scenario, Singh only said, "Just wait".

He said an atmosphere of uneasiness has been prevailing in the BJP since the Kamal Nath government started cracking a whip on various mafias.

"We (the state government) are exposing Vyapam scam, e-tendering scam, Madhyam scam. In the honey-trap case, BJP men were found to be involved. This will be exposed," he said.

The political crisis in Madhya Pradesh precipitated with the resignation of Jyotiraditya Scindia over his apparent marginalisation in the state politics. Following Scindia's suit, 14 legislators loyal to him have sent their resignation letters via e-mail to Madhya Pradesh Raj Bhavan.

Scindia was subsequently expelled from the Congress by party president Sonia Gandhi.

Speculation that the Guna royal might join the BJP gained ground after he met Prime Minister Narendra Modi in Delhi this morning.