BJP legislators stage protest, sleep inside assembly

Mangaluru, May 4: The district administration has set up seven check-posts to monitor those entering Dakshina Kannada from other districts and states amidst coronavirus crisis.

The check-posts are located at up seven check-posts at Talapady, Hejamady, Gundya, Jalsoor, Charmadi, Naravi and Kallugundi. 

According to Deputy Commissioner Sindhu B Rupesh, all those who enter the district will be screened. Those who come from outside the district and state will be asked to remain in quarantine. 

As the relaxation is announced for 12 hours, the public should be cautious while venturing out of the house. Wearing a mask in public is mandatory in addition to maintaining social distance. 

Further, she said of the 24 cases reported in the district, only four had symptoms of breathlessness and others were asymptomatic. Of the nine active cases in the district, the condition of one patient is serious while two are likely to be discharged from hospital shortly, said the DC.

Bengaluru, Apr 20: Former chief minister HD Kumaraswamy, reacting to the incident which happened in Padarayanapura area of the city last night, in which a group of men vandalised a police barricade, said that the perpetrators of the violence should be dealt with severely.

He further said, "It was not at all needed to attack Asha workers, police or doctors. These kinds of incidents are not acceptable. It is an act of shame. It does not matter which community the perpetrators belong to, each and everyone must follow the guidelines and law. Whoever indulged in such an act must be punished."

Earlier on Sunday, a ruckus erupted in Padarayanapura on Sunday allegedly over the shifting of suspected COVID-19 persons to a quarantine facility by the Bruhat Bengaluru Mahanagara Palike (BBMP) officials.

The incident occurred in the late evening at Padarayanapura, which is recognized as a 'Red Zone', when BBMP officials went to shift 15 secondary contacts of corona positive patients. However, some people created a ruckus, broke the barricade and removed the police post in the area.

In Karnataka, 390 people have detected positive for COVID-19, of which 16 people have succumbed to the infection, as per the Union Health Ministry.

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