Employees of Expertise, Al-Muzain all set to fly from Saudi Arabia to Mangaluru through charter flights

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, May 11: The first evocation flight from Dubai to Mangaluru amidst corona crisis is expected to bring back 177 stranded Kannadigas, mainly residents of coastal Karnataka, on Tuesday, May 12.

All the international passengers have to undergo three mandatory upon their arrival at Mangaluru International Airport - the thermal test, pulse oximetry reading and swab test.

They will be categorised based on their health condition and sent to institutional quarantine, said Sindhu B Rupesh, deputy commissioner, Dakshina Kannada.

“Those with some health issues on arrival (Category A) will be ferried through ambulances to quarantine facilities and rest in buses,” she said.

Arriving passengers will be given the option to choose their quarantine home (lodge, hostel and service apartment) based on their budget and preference.

It is learnt that Dakshina Kannada district administration has kept ready close to 1,000 rooms. The tariff for quarantine facilities is between Rs 1,200 and Rs 4,500 (including food) per day.

As per the Karnataka government, as on May 6, about 10,823 stranded expatriates are expected to return home.

The CISF, airport authorities, health and police departments will make arrangements for the arriving repatriates at MIA.

Sindhu said that the district administration has no personal information about the arriving passengers and there is high probability that they may belong to other districts or the neighbouring Kerala.

“So far, the district administration has received the missive that 177 passengers will be landing on May 12. If we are given advance details about the expats from other districts/state, the district administration will alert them to make necessary arrangements,” she said.

Bengaluru, Jul 19: A viral video claiming to show crowded condition of a hospital treating COVID-19 patients in the city was found to be false with police on Sunday arresting a person for allegedly circulating it on social media.

Police said such videos have the potential to create panic and asked people to refrain from spreading them.

The arrest was made within hours of the police announcing registration of a case in connection with the video that showed a crowd of people wearing masks at an "outpatient ward" of a hospital, falsely identified as Victoria Hospital, a major dedicated COVID facility here.

The video went viral on social media.

"City Crime Branch swiftly identified and arrested this person who has been circulating false videos of panic in Victoria Hospital, Bangalore. Kudos to all doctors and medical professionals who are doing their best. False news busted," Bengaluru Police Commissioner Bhaskar Rao tweeted.

Police said such videos have the potential to create panic in society and asked people to refrain from it.

"Covid False video about conditions of hospitals in Bangalore circulated on social media. Case registered in Cybercrime PS. While government, society at large fighting the pandemic, some are creating/forwarding messages/videos which has potential to create panic in society. Refrain from it," Joint Commissioner of Police, Crime, Sandeep Patil tweeted.

The video showed scores of people wearing masks gathered in a small space allegedly at an Out-Patient Department in a hospital, and a person filming it, claiming to be a doctor expressing concern that it was a threat to all medical staff, including the patients.

Official sources said the video was reportedly from a hospital in one of the northern states and not from Victoria Hospital.