Equality, cooperation must in India; friction will not work: RSS chief

Mangaluru, Jan 21: The city police arrested the auto driver of the auto-rickshaw allegedly used by the suspect to place the Improvised Explosive Device (IED) at Mangaluru International Airport.

The identity of the auto driver is yet to be ascertained.

The police are currently interrogating the auto driver to obtain details about the suspect, according to reports.

The IED recovered from a bag at the airport was defused in an open field by the personnel of the bomb disposal squad yesterday.

The visuals of the suspect have also been shared by the police for his identification. 

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Udupi, May 24: Three among the 18 coronavirus positive cases reported in Udupi district today were policemen. 

A police constable of Karkala Rural Police Station and ASI of Ajekar Police Station were tested positive for COVID-19 on Sunday and authorities have taken steps to seal the Police Stations they were working. A policeman from Brahmavar police station also tested positive.

The district administration reported seal Karkala Rural Police station, Ajekar Police Station, and Brahmavar Police Station. Apart from them Karkala Town Station and Circle station are being sealed. All the policemen and policewomen working in these five stations will be quarantined.

Superintendent of Police N Vishnuvardha said that ''all the primary contacts of the police officers who were tested positive will undergo screening and their swabs will be collected and sent to Lab for test.''