Two killed in gang attack at Farangipet; three others injured

Bengaluru, Jun 28: The Karnataka government on Saturday issued an order, directing private hospitals not to deny treatment to patients with coronavirus and COVID-19 like symptoms.

"Non-compliance of this order will attract punishment under sections of Disaster Management Act 2005," an order read.

Meanwhile, people coming from Maharashtra will be placed in seven-day institutional quarantine followed by seven-day home quarantine in Karnataka, the state government said.

People coming from other states will need to undergo 14-day home quarantine.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Jan 21: Controversial Mysuru ruler Tipu Sultan will remain in state-syllabus textbooks in the next academic year (2020-21) too. But the government will form another committee to look at the subject afresh.

"Efforts are on to give textbooks and uniforms the day schools open next academic year. After a discussion with the CM, we decided to not make any changes in the textbooks for the upcoming academic year,"said primary and secondary education minister S Suresh Kumar.

No political angle, says minister

However, we will form a committee to look into it again,” said the minister.

Three months ago, Madikeri MLA Appachu Ranjan had written to the minister seeking removal of contents on Tipu Sultan from Karnataka state syllabus books of classes 6,7 and 10. The minister said: “Appachu Ranjan is a five-time MLA. When he sent a letter, it’s my duty to seek an opinion on it. There’s no political angle here.”