CBI makes no headway in probe into Karnataka IAS officer’s death

Bengaluru, Apr 19: As many as 25 new cases of coronavirus have been reported in the State till now, said Karnataka's Health Department.

"25 new COVID-19 cases reported in the State from 5 pm Friday to 5 pm on Saturday. The total number of positive cases in the State is 384 including 14 deaths and 104 discharges," added the Health Department.

The Health Department has appealed to the doctors, who are willing to volunteer in the fight against coronavirus, to reach out to the government.

A total of 14,378 COVID-19 cases have been confirmed in the country so far, with 480 deaths being reported due to the virus.

Bengaluru, Apr 21: Bengaluru Police and administration has issued prohibitory orders in the city, with exemptions to essential and emergency services, to enforce the COVID-19 lockdown.

"In exercise of the powers conferred under Section 144 (1) Code of Criminal Procedure, I, Bhaskar Rao, IPS, Commissioner of Police and Additional District Magistrate, Bengaluru city hereby issue a prohibitory order within the limits of Bengaluru city commissioner on midnight of April 20, 2020, to midnight May 3, 2020," the order issued on Monday said.

Section 144 of the CrPC pertains to the power conferred to a District Magistrate, a sub-divisional Magistrate or any other Executive Magistrate to issue orders in urgent cases of a nuisance of apprehended danger.

"As per the guidelines of the Ministry of Home Affairs, Government of India on the measures for containment of COVID-19 epidemic, it is imperative to take stringent measures in the jurisdiction of Commissioner of Bengaluru city to prevent the spread of the disease," the order said.

As per the order, the offices of the Government of India, its autonomous and subordinate offices and public corporations shall remain closed with the exception of defence, central armed police force, treasury, public utilities, disaster management, power generation, and post office, etc.

Offices to the state government, their autonomous bodies, corporation, etc shall also remain closed except police, home guard, civil defence, fire and emergency services, electricity, water, sanitation and Mandis operated by Agriculture Produce Market Committee, etc, it added.

It said that municipal bodies, with staff required for essential services, will also remain functional during this period. Other essential and emergency services, like hospitals, shops, etc have also been exempted from the prohibitory orders.

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