DySP Anupama Shenoy gets transfer order for holding minister’s call

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, May 10 The asymptomatic and healthy people among international passengers will now have to undergo institutional quarantine for 14 days, according to the new standard operating procedure (SoP) issued by the Karnataka government for a third time.

The SoP, which has been revised twice, was issued by the Health and Family Welfare Department on Saturday, May 9.

The international passengers will be divided into two categories upon their arrival at the airports. Symptomatic will be directly sent to the covid-19 hospitals. Asymptomatic will not be allowed to go home directly. They will be sent for mandatory quarantine for 14 days in hotels and guest houses. 

Earlier, international passengers had to undergo seven days of institutional and seven days of home quarantine.

Passengers will also be tested only twice — once on arrival and for the second time on the 14th day — instead of the earlier decision to test thrice. They will be discharged from the facility if they test negative.

The first group of 350 people are expected to arrive from London at 3 am on Monday at the Kempegowda International Airport, said Lakshman Reddy, Joint Director, Social Welfare Department. 

Flights are expected from Singapore on May 13, Jeddah on May 14 and San Francisco on May 15. 

Among the stranded include 4,408 tourists and visitors, 3,084 students, 2,784 migrants and 557 ship crew.

New Delhi, Feb 24: The National Investigation Agency (NIA) is conducting raids at more than 20 locations in Karnataka and Tamil Nadu. The latest raids are being carried out in connection with ISIS conspiracy cases.

More details are currently awaited regarding the cases.

Meanwhile, NIA had on February 15 filed a charge sheet against two Lashkar-e-Toiba (LeT) terrorists before the agency special court, Jammu. The two terrorists are identified as Khalil Ahmad Kayani (34) and Mohammad Nazeem (23), both residents of Haveli Farwad Kahuta district in Pakistan occupied Kashmir (PoK).

The case is related to the arrest of the two accused near Nilkanth Nala, approximately 700 metres inside the Indian side of LoC, in Gulmarg Sector of Baramulla district.