Airport bomb: Home minister refuses to call Aditya Rao a terrorist, accuses Opposition of appeasing minorities

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Hubli, Feb 25: A Hubli court in Karnataka has sent to police custody till February 28 three students from Jammu and Kashmir, who were booked under sedition charges for raising pro-Pakistan slogan in a video shared on social media.

A second Joint Magistrate First Class (JMFC) court on Monday sent the three students, identified as Basit Ashik Sophi (19), Talib Majid (19) and Amir Mohiuddin (23), to police custody till February 28 for questioning in the matter.

The court directed the police to make the accused undergo a medical evaluation before the interrogation and produce the medical certificates in the court before the next hearing.

The three students were last week transferred to Belgaum Hindalga jail from Hubli sub-jail and the case, registered in Gokul Road police station, was also transferred to the rural police station because the video was recorded in the college hostel room which is in the latter's jurisdiction.

The Kashmiri students were under judicial custody since February 17 following their arrest for raising pro-Pakistan slogans and posting a video of the same on social media on the night of February 16. 

Bengaluru, Apr 15: Karnataka government will explore Ayurveda for fighting the deadly COVID-19, Ayurveda practitioner Dr Giridhar Kaje said here on Wednesday.

After meeting the Chief Minister, Dr Kaje informed media that on a trial basis, ten Coronavirus patients will be administered Ayurvedic treatment in a designated hospital.

Chief Minister B S Yediyurappa has consulted senior doctors on the issue, he said.