SDPI, PFI disturbing peace in Karnataka with the support of Congress: Sriramulu

Krishnagiri, Feb 24: Vidya Rani, daughter of dead sandalwood smuggler Veerappan, joined the BJP on Saturday at an event organised in Tamil Nadu's Krishnagiri.

Party general secretary Muralidhar Rao and former Union Minister Pon Radhakrishnan were present at the event.

"I want to work for the poor and underprivileged irrespective of their caste and religion. Prime Minister Narendra Modi's schemes are for the people and I want to take them to the people," said Vidya Rani.

Besides Vidya Rani, the event saw as many as 1,000 members from other political parties join the BJP.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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 25 : Taking into account surge of COVID-19  cases in neighbouring districts, Dakshina Kannada district administration has decided to suspend retail sales at Central Market in Mangaluru and public will not be allowed to purchase at Central Market from Thursday.

Proper arrangements have been made for the public to buy from nearby grocery shops from 6 am till 12 noon. 
However strict social distancing has to be ensured by the vendors failing which action will be taken, warned Deputy Commissioner Sindhu B Rupesh. The public are advised to follow social distancing measures.