Coalition govt in Karnataka may collapse on its own after LS elections: Jagadish Shettar

Bengaluru, Jun 27: The Bengaluru Police Commissioner’s office on Infantry Road has been sealed after one of the staffers tested Covid-positive. It will remain shut from June 27 to 29. 

A senior police officer from the administrative department, in a media release, stated that almost the entire staff has been asked to work from home, while some have told to work from sub-divisions of DCP’s offices. 

It is said that one of the staffers, who recently reported for duty at Anti-Terror Cell (ATC), tested positive on Friday, and officials took a decision to seal the premises after the media got wind of it. 

Earlier, a function for Drug Observation Day too was held on the premises on Friday. The staff has not been asked to go on quarantine. 

Only a few staffers have been asked to come to the police control room situated in the same building.

Bengaluru, Mar 27: A 65-year-old coronavirus patient who died in Karnataka this morning after apparently contracting the infection on a train ride has raised concern about community transmission of the highly contagious disease.
The man, the 60th coronavirus patient in Karnataka, died in Tumakuru. It is not known for certain how he caught the virus. The Karnataka Health Department has posted a notice on Twitter asking whoever travelled with him on train to come forward.

He had no history of recent foreign travel but had apparently traveled to Delhi on March 5 by Sampark Kranti Express and returned on March 11.

On March 7, he arrived at Delhi's Nizamuddin station and participated in an event at Jamia Masjid.

The man took a train back on March 11 and arrived at Yeshwantpur in Bengaluru. From there, he took a bus on March 14 to his hometown Sira.

He first showed symptoms of COVID-19 on March 18 and was taken to a private hospital. He was sent home with medicines but his condition worsened.

On March 23, he was admitted to a district hospital, but checked himself out against all advice and went to a private hospital. When his health showed signs of deterioration, he was again sent to the district hospital, where he tested positive for coronavirus yesterday. He died around 10.30 am today.

The health department has since traced 24 people who came in direct contact with him and are so, in the high-risk category. Thirteen are in hospital and eight have tested negative.

"All passengers who had travelled with him on the train are being traced," K Rakesh Kumar, Deputy Commissioner, Tumakuru, was quoted as telling news agency ANI.

A 70-year old woman and a 76-year old man had died of coronavirus or COVID-19 earlier in Karnataka.

India has over 700 coronavirus cases, including 17 deaths.

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