Tanveer Sait's gunman suspended for negligence of duty

Bengaluru, Apr 21: Alarmed by reports that 53 media persons have contracted coronavirus in Maharashtra, a Minister on Tuesday urged Chief Minister B S Yediyurappa to screen all the journalists in Karnataka.

During the regular Covid-19 related briefing on Monday, a reporter had raised the issue of 53 journalists in the neighbouring state testing positive for the disease, with Minister for Primary and Secondary Education S Suresh Kumar.

In Maharashtra, out of the 171 scribes examined medically, 53 were found to have the viral infection.

In his letter to the CM, Kumar said a similar test should be carried on the journalists in Karnataka.

"The journalists wanted a similar kind of screening to be carried out on them. Therefore, please direct the health and the information department immediately to conduct the screening of journalists who are in contact with public," Kumar said.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Mar14 (UNI) In view of prevailing Global situation, Coast Guard Karnataka took initiatives for creating awareness among the CG Personnel, Civilian Staff and Families on precautions so that the contagious Coronavirus be prevented.

For the benefit of CG personnel posters have been displayed at entrance and prominent places in office premises and residential areas including the CG KG School.

All CG Personnel and their families were advised to frequently wash their hands with sanitiser or soap and water at regular intervals. They are also requested to cover their nose and mouth with handkerchief or tissue while coughing or sneezing. It is advised to consult doctor if there is fever, difficulty in breathing, coughing, all being symptoms of Corona Virus.