Tipu wasn't a freedom fighter; what's logic behind his jayanti: High Court

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Mangaluru, Mar 12: Deputy Commissioner Sindhu B Rupesh on Thursday said that the test reports of the 35-year-old passenger from Dubai have shown no signs of either Coronavirus (COVID-19) or H1N1.

In statement issued here Ms Rupesh said that the passenger has now been discharged from the Bantwal hospital. He has been asked to stay at home quarantined for the next 14 days.

The passenger, who had been diagnosed with fever after he arrived at the airport from Dubai on March 8, had left the Government Wenlock Hospital in the early hours of March 9 refusing to undergo tests.

Later, he was traced and admitted to the hospital in Bantwal and his throat swab samples had been sent to Viral Research Diagnostic Laboratory (VRDL) in Hassan Institute of Medical Sciences.

Meanwhile, throat swab samples of six patients were also found negative for COVID-19.

As many asf 49 people were under quarantine in the district of which five have completed the 28-day cycle.

All passengers arriving by international flights and those in contact with them should voluntarily report to the district health team and undergo self-quarantine for 14 days. If there were symptoms of cough, cold and fever, they should undergo tests for COVID-19. If the reports were positive for COVID-19, then they have to stay in the isolation ward of the Government Wenlock Hospital or in the seven select private hospitals for 28 days.

Screening facility at the airport has been strengthened by posting doctors from seven private medical colleges on rotation basis. These doctors would be in addition to the medical officer at the airport. An ambulance has been placed at the airport exclusively to shift people to the hospitals, she added.

The State government has issued a notification on Wednesday authorising Deputy Commissioners to get the affected admitted by force, if necessary.

Hubli, Feb 19: The Karnataka Police on Wednesday registered a case against unknown persons for assaulting three Kashmiri students in the court premises here.

A suo motu FIR has been registered at Vidyanagar police station of Hubli in which assault charges have been filed against 10 to 15 unknown people.

It can be recalled that on February 17 these three Kashmiri students were attacked in court premises after they were produced in court on charges of sedition.

The Kashmiri students were arrested here on February 15 after their video in which they are seen allegedly raising pro-Pakistan slogans went viral.

The students were studying at the KLE Institute of Technology on a central government scholarship.