10 Indian beaches including one in Udupi to be converted into global quality

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Bengaluru, Jul 11: Karnataka on Saturday reported the biggest single-day spurt of 2,798 cases and a record 70 related fatalities, taking the total number of infections in the state to 36,216, the health department said.

The day also saw a record 880 patients getting discharged after recovery.

Out of 2,798 fresh cases, a whopping 1,533 cases were from Bengaluru urban alone.

The previous biggest single-day spike was recorded on July 10 with 2,313 cases.

As of July 11 evening, cumulatively 36,216 COVID-19 cases have been confirmed in the state, which includes 613 deaths and 14,716 discharges, the health department said in its bulletin.

It said out of 20,883 active cases, 20,379 patients are in isolation at designated hospitals and are stable, while 504 are in ICU.

Out of 70 deaths reported, 23 are from Bengaluru urban, 8 from Mysuru, five from Dakshina Kannada, among others.

Most of the dead are either with a history of Severe Acute Respiratory Infection (SARI) or Influenza-like illness (ILI).

Out of 2,798 cases tested positive today, contacts of the majority of the cases are still under tracing.

Among the districts where the new cases were reported, Bengaluru urban accounts for 1533 cases, followed by Dakshina Kannada 186, Udupi 90, Mysuru 83, Tumakuru 78, Dharwad 77 and Yadgir 74.

Bengaluru urban district tops the list of positive cases, with a total of 16,862 infections, followed by DakshinaKannada 2,026 and Kalaburagi 2,024.

A total of 7.99 lakh samples were tested so far, out of which 20,587 were tested on Saturday alone.

So far 7.46 lakh samples have been reported as negative, and out of them 17,488 were reported negative today.

Bengaluru, Feb 14: In a major embarrassment to the police, the Karnataka High Court has termed as illegal the prohibitory orders imposed under Section 144 of CrPC by the City Police Commissioner in December 2019 in the light of the anti-Citizenship Amendment Act (CAA) protests in Bengaluru.

The orders were passed “without application of mind” and without following due procedures, the court noted. Giving reasons for upholding the arguments of the petitioners that there was no application of mind by the Police Commissioner (Bhaskar Rao) before imposing restrictions, a division bench of the High Court said he had not recorded the reasons, except reproducing the contents of letters addressed to him by the Deputy Commissioners of Police (DCPs). 

The state government had contended that prohibitory orders were passed based on reports submitted by the DCPs who expressed apprehension about anti-social elements creating law and order problems and damaging public property by taking advantage of the anti-CAA protests.  

The High Court bench said the Police Commissioner should have conducted inquiry as stated by the Supreme Court to check the reasons cited by the DCPs who submitted identical reports. Except for this, there were no facts laid out by the Police Commissioner, the court said.

“There is complete absence of reasons. If the order indicated that the Police Commissioner was satisfied by the apprehension of DCPs, it would have been another matter,” it said.  

“The apex court has held that it must record the reasons for imposition of restrictions and there has to be a formation of opinion by the district magistrate. Only then can  the extraordinary powers conferred on the district magistrate can be exercised. This procedure was not followed. Hence, exercise of power under Section 144 by the commissioner, as district magistrate, was not at all legal”, the bench said. 

“We hold that the order dated December 18, 2019 is illegal and cannot stand judicial scrutiny in terms of the apex court’s orders in the Ramlila Maidan case and Anuradha Bhasin case,” the HC bench said while upholding the arguments of Prof Ravivarma Kumar, who appeared for some of the petitioners.   

Partly allowing a batch of public interest petitions questioning the imposition of prohibitory orders and cancelling the permission granted for protesters in the city, the bench of Chief Justice Abhay Shreeniwas Oka and Justice Hemant Chandangoudar observed that, unfortunately, in the present case, there was no indication of application of mind in passing prohibitory orders.

The bench said the observation was confined to this order only and it cannot be applicable in general. If there is a similar situation (necessitating imposition of restrictions), the state is not helpless, the court said.