Trolls invite BJP leaders to try delicacies of beef-loving Kerala

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Jan 10: To mark the Karavali Utsav the district administration held a colourful procession from Nehru Maidan to Karavali Utsav Grounds Lalbagh here on Friday.

The colourful procession was inaugurated by the District Minister In-charge Kota Srinivas Poojary by lighting the traditional lamp along with other dignitaries. Various troupes from all over the state are participating in the procession from Nehru Maidan to the Karavali grounds.

Addressing the gathering Kota Srinivas Poojary said, “Karavali Utsav is a meaningful festival. The Tradition and culture of Dakshina Kannada is very meaningful. By organizing Utsav’s we are highlighting our tradition and Culture to national and international levels.

Udupi, May 31: As many as 10 people have been tested positive for coronavirus in Udupi district today. 

The district has registered a total of 187 positive cases so far. Majority of the positive cases in Udupi district have inter-state travel history to Maharashtra.

Meanwhile, 14 people including three children who recovered from COVID -19 discharged from Government Hospital in Kundapura, in Udupi district.

Kundapura AC Raju, DHO Dr Sudhirchandra Sooda, taluk medical officer Dr Nagabhushan Udupa handed over a rose to all the discharged. With this, a total of 64 persons have been recovered and discharged in the district.